下面哪条符合实验性研究的情况A．实验进行的方向是随着实验开始向前进行的 B．必须设立

读下面一段话，按拼音在括号内填写汉字，并给划线字注音。（4分）

我看见他dài（  ）着黑布小帽，穿着黑布大马褂，深青布棉袍，蹒跚（  ）（   ）地走到铁道边，慢慢探身下去，尚不大难。可是他穿过铁道，要爬上那边月台，就不容易了。他用两手攀着上面，两脚再向上缩；他肥胖的身子向左微qīnɡ（   ），显出努力的样子，这时我看见他的背影，我的泪很快地流下来了。

She       volleyball regularly for many years when she was young.

A．was playing

B．played

C．has played

D．had played

用所给词的适当形式填空。

1. We should practice ______________(speak) English as much as we can.

2. It's easy for Kitty ___________(cut) out the eyes ,the nose and the sharp teeth.

3. - Where's Millie?

   --Oh, she ____________(wait) for Amy at the school gate.

4. All of us can get lots of presents on                (child) Day.

5. Look at your clothes. How __________(colour) you are today!

6. Why not ____________(take) your dog for a walk after supper?

7. My best friend            (not write) e- mails on Monday .

8. Miss Xi often buys a lot of _______________(mango) on her way home.

9. I think the new shopping mall is a good place ___________(meet) friends.

10. Sandy goes to school without ____________(have) breakfast today.

11. Mum asks me to clean my own bedroom ___________(two) a week.

12. The new coat makes Simon          (look) cool.

13. It's six o'clock now. Millie and Sandy             (not run) in the playground .

14. Do you have enough time           (help) us finish the work?

15.My little sister wants to be a            (dance) when she grows up.

下列会计科目中，如月末有余额，一般在贷方的是（）。

A.银行存款

B.长期借款

C.材料采购

D.应收利息

RTX测量采用单基站RTX和（）RTK两种方法进行。

A.双基站

B.三基站

C.虚拟基站

D.网络