若a是有理数，则m=1a-2a+3a-4a+5a一定不是（ ） A．正整数 B．负整

根据首字母或汉语提示，完成句中所缺单词。

小题1:He often              (抱怨) about his low pay.

小题2:The headmaster is really angry! Look at his            (吓人的)look.

小题3:If the goods are              (毁坏)in the post, the post office should be responsible for it.

小题4:Nowadays,             (贫穷)is still a major issue facing the government.

小题5:With all his           (力气), the boy lifted the heavy box onto his shoulder.

小题6:F________ with great challenges, the Chinese government took powerful measures to deal with them.

小题7:The Hope P              is designed to help the children from less-developed areas.

小题8:The p           air and water can explain why the people here are getting ill one by one.

小题9:Please tell us one of your unforgettable e          when you volunteered in the mountains.

小题10:She is hard-working and very a                 in class.

用所给动词的正确形式填空，必要时使用used to。

      My grandmother complains about how things   1   (change), and she says that life   2  (be) better.

Families aren't families the way they  3  (be). And mothers  4  (stay) home and take care of their

children, but now everyone   5   (work). No one has time for children. Everyone's divorced. (离婚) If

a husband and wife   6   (have) problems with their marriage, they don't stay together anymore.

      And the cars! No one   7  (walk) anymore; everybody drives. We   8   (walk) five miles to school

everyday, even in winter. And people   9  (not, talk) to each other anymore. They are too busy to talk,

too busy to eat, too busy to think…

       Life   10  (be) simple, but it isn't now.

Do you ____________ in a house or an apartment?[ ]

A. live

B. living

C. lives

D. to live

根据程控交换机运行管理规程的要求，未经（ ）同意，禁止修改机器参数。

A．主管工程师

B．部门经理

C．管理员

D．业主委员会

患者女性，原发性高血压，为其测量血压时正确的做法是（）

A.若采取立位测量，手臂应平第6肋间

B.放气时听到最强音时汞柱所指刻度即为收缩压

C.缓慢放气，速度4mmHg/s

D.听到变音时汞柱所指刻度即为舒张压

E.听到舒张压后保持放气速度，直到汞柱回到零位