將氟氣通入氯化鉀溶液中可以得到……（ ）

A、氟化鉀和氯氣     B、氯化氫和氟化鉀     C、氫氟酸和氧氣     D、氟化氫和金屬鉀

氫化鈉(NaH)是一種白色離子晶體，NaH與水反應(yīng)放出H₂，則下列敘述正確的是………（ ）

A、NaH溶于水顯酸性                  B、NaH中氫離子被還原為氫氣

C、NaH跟水反應(yīng)時(shí)，水是還原劑        D、NaH中氫離子最外層有2個(gè)電子

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

下列詞語(yǔ)中加點(diǎn)的字的讀音，全都不相同的一組是

    A．跋扈    躑躅    蹙額    踟躕不前    一蹴而就

    B．整飭    餉銀    氣餒    文過(guò)飾非    以饗讀者

    C．翌日    蓊郁    翱翔    翻云覆雨    振翮高飛

D．磨礪    麾下    奢靡    麻木不仁    摩肩接踵