全球1.5亿网民赖以生存的顶级域名服务器共（）台。 A.3 B.13 C.103 D

用所给词的适当形式填空  

      It was September 30th. When Tom   1  (wake) up, it was 8:00. He got up as   2  (quick) as possible. He   3  (have) no time to eat breakfast, so he went to school   4   (with) breakfast.  When he got to the

school gate, the gate was   5  (close). He realized that it was Sunday. What a careless boy!

现定义两种运算“※”和“#”，对于整数a、b，有a※b=a+b-1，a#b=ab-1．求4#[（6※8）※（3#5）]的值．

One thing I am certain of is that hard work _______ good results.

A．refers to

B．contributes to

C．sticks to

D．devotes to

安装外部灯光时：（）

A、可以用裸手触摸新灯泡

B、应该用手套或干净布拿新灯泡，不可以用裸手触摸

下列选项中，属于子宫内膜的周期性变化（）.

A.增生期

B.分泌期

C.月经期

D.排卵期

E.黄体期