纯水在80℃时的pH A.等于7 B.大于7 C.小于7 D.无法确定

题型:选择题

问题:

纯水在80℃时的pH                                                 

A.等于7

B.大于7

C.小于7

D.无法确定

考点:燃烧热水的离子积常数水电离的影响因素水的电离平衡
题型:选择题

— Did the door-keeper let you in?

— No. ____I tried to tell him I was your relative, he just didn’t believe me.

A.Whether

B.Whatever

C.No matter

D.However

题型:选择题

按要求改写句子。

1. The Green Family are staying in Qingdao for five years.(就划线部分提问)

    _________ _________ _________ the Green family staying in Qingdao?

2. The girl became a movie star when she was four years old.(就划线部分提问)

    _________ _________ the girl _________ a movie star?

3. Tom is 1.60 metres tall. John is 1.65 metres tall.(合为一句)

    John _________ _________ _________ Tom.

4. He began to write his first book when he was ten.(改为同义句)

    He started writing his first book ________ ________ _______ _______ ten.

5. It is about 300 kilometers from Haikou to Sanya. (就划线部分提问)

    _________ _________ is it from Haikou to Sanya?

6. My aunt bought me a new book yesterday.(改为一般疑问句)

     _________ your aunt _________ you a book yesterday?

7. They took the bus back to school.(改为同义句)

    They _________ to school _________ bus.

8. We need one teaspoon of milk shake.(对画线部分提问)

    How _________ _________ of milk shake do you need?

9. Does he watch TV every day?(用yesterday替换画线部分)

    _________ he _________ TV _________?

10. She is going to travel around the world.(改为同义句) 

     She is going to travel _________ _________ the world.

题型:选择题

患者莫某,久咳不已,咳甚则气短自汗,舌质淡,脉虚弱微数。治宜选用()。

A.止嗽散

B.九仙散

C.玉屏风散

D.炙甘草汤

E.补中益气汤

题型:选择题

程序调试的任务是(  )。

A.设计测试用例

B.验证程序的正确性

C.发现程序中的错误

D.诊断和改正程序中的错误

题型:选择题

如果文件不完整,下述哪种方法不能解决该类问题()。

A、从其它计算机上复制相关文件

B、用sfc.exe文件对不完整文件进行修复

C、用format对磁盘进行格式化

D、对不完整的文件进行改名,然后再做相关处理

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