What is the meaning of “short hauls”? （）
A:Near way B:The distance is not long C:Direct line D:Short road
阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
? ? Energy equals mass times the speed of
light squared. This is the famous equation of Albert Einstein. It{{U}} ?(51)
?{{/U}}to the category of the theory of relativity, and it equates energy
with mass.
? ?All things are made up of atoms. When{{U}} ?(52)
?{{/U}}of an atom travels at almost the speed of light{{U}} ?(53)
?{{/U}}we put more energy into it to increase the speed, it begins to in
crease in mass. The energy that makes it travel fast cannot make it travel{{U}}
?(54) ?{{/U}}the speed of light—nothing{{U}} ?(55) ?{{/U}}light
can travel that fast- so the energy goes into the thing{{U}} ?(56)
?{{/U}}and increases its mass. Energy{{U}} ?(57) ?{{/U}}into
mass.
? ?Why is the theory called the theory of relativity? A thing
that is relative depends upon{{U}} ?(58) ?{{/U}}else to identify it or to
define it. In relativity theory we identify or define mass, time, and length{{U}}
?(59) ?{{/U}}to the speed of light.
? ?When something is at
rest, it looks{{U}} ?(60) ?{{/U}}in length. However, when it travels at
almost the speed of light, it becomes{{U}} ?(61) ?{{/U}}. Time also
changes. However, the change in time is{{U}} ?(62) ?{{/U}}to the change in
length. The length of a thing becomes short{{U}} ?(63) ?{{/U}}time becomes
long.
? ?If you want to{{U}} ?(64) ?{{/U}}young, relative to
a friend, take a trip in a spaceship that travels at{{U}} ?(65) ?{{/U}}the
speed of light. And, although time and heartbeat seem ordinary to you in the
spaceship, when you return, look at your friend; Relative to you, he or she is
old. |
A:low B:short C:wide D:long
二元算术运算表达式的两个操作数全是short类型的数据，则表达式的结果应该是 ( )类型。
A:short B:int C:byte D:long
二元算术表达式的两个操作数全是short类型的数据，则表达式的结果是( )。
A:short B:int C:byte D:long
二元算术运算表达式的两个操作数全是short类型的数据，则表达式的结果应该是 ( )类型。
A:short B:int C:byte D:long
二元算术表达式的两个操作数全是short类型的数据，则表达式的结果是( )。
A:short B:int C:byte D:long
二元算术表达式的两个操作数全是short类型的数据，则表达式的结果是( )。
A:short B:int C:byte D:long
单项选择
