将氟气通入氯化钾溶液中可以得到……（ ）

A、氟化钾和氯气     B、氯化氢和氟化钾     C、氢氟酸和氧气     D、氟化氢和金属钾

氢化钠(NaH)是一种白色离子晶体，NaH与水反应放出H₂，则下列叙述正确的是………（ ）

A、NaH溶于水显酸性                  B、NaH中氢离子被还原为氢气

C、NaH跟水反应时，水是还原剂        D、NaH中氢离子最外层有2个电子

Jenny nearly missed the flight______ doing too much shopping. 

A. as a result of      B. on top of    C. in front of      D. in need of

Progress______ so far very good and we are sure that the work will be finished on time.

A. was       B. had been    C. has been    D. will be

It is often ______ that human beings are naturally equipped to speak.

A. said       B. to say     C. saying     D. being said

They use computers to keep the traffic _______ smoothly. 

A. being run       B. run         C. to run        D. running

I’m sure that your letter will get______ attention. They know you’re waiting for the reply.

 A. continued   B. immediate   C. careful   D. general

It’s high time you had your hair cut ; it’s getting _______ .

A. too much long       B. much too long

C. long too much       D. too long much

Jenny nearly missed the flight______ doing too much shopping. 

A. as a result of      B. on top of    C. in front of      D. in need of

下列词语中加点的字的读音，全都不相同的一组是

    A．跋扈    踯躅    蹙额    踟蹰不前    一蹴而就

    B．整饬    饷银    气馁    文过饰非    以飨读者

    C．翌日    蓊郁    翱翔    翻云覆雨    振翮高飞

D．磨砺    麾下    奢靡    麻木不仁    摩肩接踵