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【单选题】
硫和氯都是典型的非金属元素，非金属元素的非金属性强弱的判断方法有多种．下列事实能作为判断硫的非金属性弱于氯的依据是（ ）A.
常温常压下，硫为浅黄色固体，而氯为黄绿色气体
B.
跟金属反应和氢气反应时，硫被还原为-2价，氯被还原为-1价
C.
硫不溶于水而氯气能溶于水
D.
跟同一种金属（如Fe或Cu）反应时，金属被硫氧化成低价态，被氯氧化成高价态
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【单选题】－－ If you don’t bring a birthday present to Lucy, you may.－－ Thank you for reminding me. Surely
A.
31. -- If you don’t bring a birthday present to Lucy, you may . -- Thank you for reminding me. Surely I’ll buy her one this evening. A．leave her alone
B.
let her down
C.
hold her back
D.
cheer her up
【简答题】误机是重大事故,会给旅行社、旅游者等带来各方面的损失,应怎样预防误机事故的发生?
【单选题】If I _________ under the ladder to catch you when you fell, you _____now.A．hadn’t stood ; wouldn
A.
31. If I _________ under the ladder to catch you when you fell, you _____now. A．hadn’t stood ; wouldn’t be smiling
B.
hadn’t stood , couldn’t have smiled
C.
didn’t stand, won’t be smiling
D.
didn’t stand, couldn’t be smiling
【简答题】旅游者等带来各方面的损失,应怎样预防误机事故的发生?
【单选题】—I dare say you will definitely miss your flight if you don’t hurry. —Oh, _____. It’s almost the
A.
31. —I dare say you will definitely miss your flight if you don’t hurry. —Oh, _____. It’s almost the time. A．so will I
B.
I do so
C.
so I will
D.
so will you
【单选题】I expect you’ve already done it,______the manager asked you to give him a ring this afternoon.A．
A.
31. I expect you’ve already done it,______the manager asked you to give him a ring this afternoon. A．but
B.
and
C.
though
D.
So
【单选题】—Could I have a look at the photo of your family， Sam? —Of course you ________ ．A．
A.
31． —Could I have a look at the photo of your family， Sam? —Of course you ________ ． A． may
B.
can
C.
could
D.
must
【单选题】汽车保险合同,一方当事人付出的代价所买到的只是一个机会,付出代价的当事人最终可能“一本万利”也可能毫无所得。这是汽车保险合同的一般特征中的( )。
A.
有偿合同
B.
射幸合同
C.
双务合同
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