杜某，男，4岁，乳牙。乳磨牙近中关系，前牙反，下颌前伸，位置前移。

如果设计上颌垫活动矫治器矫治，垫的高度应使前牙打开

A:0mm B:0．5～1mm C:1～2mm D:2～3mm E:3～4mm

杜某，男，4岁，乳牙。乳磨牙近中关系，前牙反，下颌前伸，位置前移。

反解除后，双侧垫每次应磨除

A:0．5mm以内 B:0．5～1．0mm C:0～2．0mm D:1／3 E:1／2

以下设置配置在串口0的逻辑通道8down判定条件的命令正确的是哪一个？（）

A:Quidway（config-if-s0）#backup state-down10 B:Quidway（config-logic-channel8）#backup state-down10 C:Quidway（config-logic-channel8）#backup delay1010 D:Quidway（config-int-s0）#backup delay1010 E:Quidway（config-int-s0）#backup state-down1010

Text 4 　　On a five to three vote, the Supreme Court knocked out much of Arizona’s immigration law Monday-a modest policy victory for the Obama Administration. But on the more important matter of the Constitution,the decision was an 8-0 defeat for the Administration’s effort to upset the balance of power between the federal government and the states。 　　In Arizona v. United States, the majority overturned three of the four contested provisions of Arizona’s controversial plan to have state and local police enforce federal immigration law. The Constitutional principles that Washington alone has the power to “establish a uniform Rule of Naturalization ”and that federal laws precede state laws are noncontroversial . Arizona had attempted to fashion state policies that ran parallel to the existing federal ones。 　　Justice Anthony Kennedy, joined by Chief Justice John Roberts and the Court’s liberals, ruled that the state flew too close to the federal sun. On the overturned provisions the majority held the congress had deliberately “occupied the field” and Arizona had thus intruded on the federal’s privileged powers。 　　However,the Justices said that Arizona police would be allowed to verify the legal status of people who come in contact with law enforcement.That’s because Congress has always envisioned joint federal-state immigration enforcement and explicitly encourages state officers to share information and cooperate with federal colleagues。 　　Two of the three objecting Justice-Samuel Alito and Clarence Thomas-agreed with this Constitutional logic but disagreed about which Arizona rules conflicted with the federal statute.The only major objection came from Justice Antonin Scalia,who offered an even more robust defense of state privileges going back to the alien and Sedition Acts。 　　The 8-0 objection to President Obama turns on what Justice Samuel Alito describes in his objection as “a shocking assertion assertion of federal executive power”.The White House argued that Arizona’s laws conflicted with its enforcement priorities,even if state laws complied with federal statutes to the letter.In effect, the White House claimed that it could invalidate any otherwise legitimate state law that it disagrees with 。 　　Some powers do belong exclusively to the federal government, and control of citizenship and the borders is among them. But if Congress wanted to prevent states from using their own resources to check immigration status, it could. It never did so. The administration was in essence asserting that because it didn’t want to carry out Congress’s immigration wishes, no state should be allowed to do so either. Every Justice rightly rejected this remarkable claim。 Three provisions of Arizona’s plan were overturned because they

A:deprived the federal police of Constitutional powers。 B:disturbed the power balance between different states。 C:overstepped the authority of federal immigration law。 D:contradicted both the federal and state policies。

Text 4 　　On a five to three vote, the Supreme Court knocked out much of Arizona’s immigration law Monday-a modest policy victory for the Obama Administration. But on the more important matter of the Constitution,the decision was an 8-0 defeat for the Administration’s effort to upset the balance of power between the federal government and the states。 　　In Arizona v. United States, the majority overturned three of the four contested provisions of Arizona’s controversial plan to have state and local police enforce federal immigration law. The Constitutional principles that Washington alone has the power to “establish a uniform Rule of Naturalization ”and that federal laws precede state laws are noncontroversial . Arizona had attempted to fashion state policies that ran parallel to the existing federal ones。 　　Justice Anthony Kennedy, joined by Chief Justice John Roberts and the Court’s liberals, ruled that the state flew too close to the federal sun. On the overturned provisions the majority held the congress had deliberately “occupied the field” and Arizona had thus intruded on the federal’s privileged powers。 　　However,the Justices said that Arizona police would be allowed to verify the legal status of people who come in contact with law enforcement.That’s because Congress has always envisioned joint federal-state immigration enforcement and explicitly encourages state officers to share information and cooperate with federal colleagues。 　　Two of the three objecting Justice-Samuel Alito and Clarence Thomas-agreed with this Constitutional logic but disagreed about which Arizona rules conflicted with the federal statute.The only major objection came from Justice Antonin Scalia,who offered an even more robust defense of state privileges going back to the alien and Sedition Acts。 　　The 8-0 objection to President Obama turns on what Justice Samuel Alito describes in his objection as “a shocking assertion assertion of federal executive power”.The White House argued that Arizona’s laws conflicted with its enforcement priorities,even if state laws complied with federal statutes to the letter.In effect, the White House claimed that it could invalidate any otherwise legitimate state law that it disagrees with 。 　　Some powers do belong exclusively to the federal government, and control of citizenship and the borders is among them. But if Congress wanted to prevent states from using their own resources to check immigration status, it could. It never did so. The administration was in essence asserting that because it didn’t want to carry out Congress’s immigration wishes, no state should be allowed to do so either. Every Justice rightly rejected this remarkable claim。 The White House claims that its power of enforcement

A:outweighs that held by the states。 B:is dependent on the states’ support。 C:is established by federal statutes。 D:rarely goes against state laws。

Passage Three

According to the passage, the earth in its very early period was ______.

A:in molten state B:in water state C:in rock state D:a vast ocean

Passage 3

What is the purpose of the passage

A:To tell how "high tech" and "state of the art" have developed. B:To give examples of "high tech". C:To tell what "high tech" and "state of the art" are. D:To describe very modem technology.

Passage 3

What can we infer from the passage

A:American stores could provide new kinds of products to people. B:High tech describes a technology that is not traditional. C:"State of the art" is not as popular as "high tech". D:A modem plough pulled by oxen is "state of the art".

Passage 3

Which of the following statements is not true

A:Since the computer revolution, the expression "state of the art" has become popular. B:"State of the art" means something that is the best one can buy. C:With the rapid development of computer, "state of the art" computer may easily become out of date. D:All kinds of products are "state of the art" nowadays.

Passage 3

The best title for the passage is______.

A:Computer Technology B:High Tech and State of the Art C:Most Advanced Technology D:Two New Expressions