关于ROUND（）函数，下列计算那个是不正确的（）。

A:Round（103.456，2）的返回值为103.46 B:Round（3274.56，-1）的返回值为3270 C:Round（3274.56，-2）的返回值为3300 D:round（1256.233，2）的返回值为1256.24

轮唱曲round

比较MAX(2，4，6，8，10)、ROUND(8.5，0)、INT(8.5)、ABS(-11)的大小，正确顺序为（　）。

A:ABS(-11)＜ROUND(8.5，0)＜INT(8.5)＜MAX(2，4，6，8，10) B:ABS(-11)＜INT(8.5)＜ROUND(8.5，0)＜＜MAX(2，4，6，8，10) C:INT(8.5)＜ROUND(8.5，0)＜MAX(2，4，6，8，10)＜ABS(-11) D:ROUND(8.5，0)＜INT(8.5)＜MAX(2，4，6，8，10)＜ABS(-11)

比较MAX(2，4，6，8，10)、ROUND(8．5，0)、INT(8．5)、ABS(一11)的大小，正确的顺序为（　　）。

A:ABS(－11) B:ABS(－11) C:INT(8．5) D:ROUND(8．5，0)

Passage Two
Table top magic requires no secret formula. Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful. No matter what type of dinnerware you own, you can enhance its beauty with a variety of attractive table linens.
When selecting a supply of tablecloths, place mats and napkins, choose easy-care or permanent-press fabrics because these fabrics will reduce your workload when washday rolls around. Another consideration is the suitability of your linens for your dining style or the types of entertaining you do. The shape of your table will also dictate the kind of tablecloth you purchase. Circular or rounded tables look best covered with round or oval tablecloths. Square-cornered tables require squares or rectangles.
Finally, your table linens should complement your dinnerware. An elegant table setting requires an elegant tablecloth. A setting of stoneware looks best with heavy of colorful fabrics.
But sure to take all the necessary measurements before you start shopping for fabric of your choice. It could be embarrassing if your tablecloths are not long enough to cover the tables. It is equally distressing if your tablecloth is so long that your guests have to watch where they walk.
Which size tablecloth would you buy for a circular table which is 30 inches high and 45 inches in diameter

A:45-inch round. B:50-inch round. C:70-inch round. D:120-inch round.

Passage Five
Table top magic requires no secret formula. Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful. No matter what type of dinnerware you own, you can enhance its beauty with a variety of attractive table linens.
When selecting a supply of tablecloths, place mats and napkins, choose easy-care or per manentpress fabrics because these fabrics will reduce your workload when washday rolls around. Another consideration is the suitability of your linens for your dining style or the types of entertaining you do. The shape of your table will also dictate the kind of tablecloth you purchase. Circular or rounded tables look best covered with round or oval tablecloths. Square-cornered tables require squares or rectangles.
Finally, your table linens should complement your dinnerware. An elegant table setting requires an elegant tablecloth. A setting of stoneware looks best with heavy of colorful fabrics.
But sure to take all the necessary measurements before you start shopping for fabric fo your choice. It could be embarrassing if your tablecloths are not long enough to cover the tables. It is equally distressing if your tablecloth is so long that your guests have to watch where they walk.

A:45-inch round. B:50-inch round C:70-inch round D:120-inch round

Passage Two
Table top magic requires no secret formula. Even the simplest meal will be received with enthusiasm if the table accessories are creative and colorful. No matter what type of dinnerware you own, you can enhance its beauty with a variety of attractive table linens.
When selecting a supply of tablecloths, place mats and napkins, choose easy-care or permanent-press fabrics because these fabrics will reduce your workload when washday rolls around. Another consideration is the suitability of your linens for your dining style or the types of entertaining you do. The shape of your table will also dictate the kind of tablecloth you purchase. Circular or rounded tables look best covered with round or oval tablecloths. Square-cornered tables require squares or rectangles.
Finally, your table linens should complement your dinnerware. An elegant table setting requires an elegant tablecloth. A setting of stoneware looks best with heavy of colorful fabrics.
But sure to take all the necessary measurements before you start shopping for fabric of your choice. It could be embarrassing if your tablecloths are not long enough to cover the tables. It is equally distressing if your tablecloth is so long that your guests have to watch where they walk.
Which size tablecloth would you buy for a circular table which is 30 inches high and 45 inches in diameter

A:45-inch round. B:50-inch round. C:70-inch round. D:120-inch roun

                                                                          Solar Storm
At the end of October 2003, a sudden solar storm hit the earth. A solar storm refers to the large amounts of charged particles released into space (1) the solar energy increases. The release of the energy (2) place along with the activity of the sunspots with a cycle of 11 years. This time, the (3) of the storm exceeded expectations.
This (4) of intense solar storm was caused by the eruption of a solar flare (闪光) and the ejection (喷发) of the solar corona (日寇) on October28, 2003. Large amounts of charged particles moved 150, 000, 000 kilometers through space toward the (5) in 19 hours. They could affect aircraft roaming (漫游) in space.
The high-energy particles will (6) some of the parts of an aircraft. They may also cause it to fail. High-energy particles can threaten the safety of an aircraft at a high orbit. If an aircraft orbits at a lower orbit, it is (7) because it is under the protection of the earth’s magnetic field.A solar storm not only affects aircraft but also is a (8) to the environment and humans. The aerosphere and magnetic field of the earth can (9) humans from ultraviolet radiation and X-rays. While most of the X-rays are absorbed after they enter the aerosphere (大气层), still a few can (10) the ground.
The geomagnetic storm caused by this round of solar storm reaches its highest level on the two (11) of the earth, which affects electricity supply of North America. Overexposure to (12) threatens the health of passengers on planes flying over the Polar Regions. If we fly in the sky during such a solar storm, it (13) we receive ten times the X-ray radiation. It’s really damaging.
Scientists say a solar eruption is like the sun sneezing, which will make the earth (14) a cold. Though this natural force is irresistible, scientists can still (15) its movement accurately by monitoring. Facing successive solar storms, humans can’t drop their guard.

A:piece B:part C:round D:set

下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。

A:piece B:part C:round D:set

ROUND(123.456,-2)______。