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【单选题】
有一混合蛋白溶液,各蛋白质的 pI 分别为 4.7 、 5.0 、 5.8 、 6.4 、 7.6 。电泳时,欲使其中 4 种泳向正极,缓冲液的 pH 应该是A.
4.0
B.
5.0
C.
6.0
D.
7.0
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【简答题】卫生器具-挂式小便器定额编号是()
【简答题】Direction: Complete the following sentences with appropriate forms of words according to the meaning of the expressions given in Chinese or English in brackets .
【单选题】Which of the following sentences contains a change-of-direction signal?
A.
“‘You want anything else, dear?’ he asks, his bushy gray eyebrows rising with the question.”
B.
“‘In some restaurants, they wouldn't let a guy with a face like yours in.’”
C.
“After a moment one rises, goes behind the counter, and rummages in a drawer.”
D.
“‘I get up at the crack of dawn to make your breakfast, but don't bother saying “good morning” to m
【简答题】Direction: Translate the following sentences into English. Pay attention to the subject. 起大风了。
【单选题】Direction: Choose the correct explaination of the following sentences 1. Do you take credit cards?
A.
The question is asked to make sure weather the listener accept credit cards
B.
The question is used to express the similar meannig as the sentence 'Do you have credit cards?'
C.
The question is used to ask the listener whether he or she use th automatic teller machine.
【简答题】Direction: Listen and write the sentences. 听录音,写句子 。
【简答题】Paraphrase the following sentences. 2. In fact, she veered in the opposite direction.
【简答题】Direction : The following 8 sentences are base on passage 1. Listen to Passage 1 again and complete the sentences. I’m much more (1) (宽容的) now...it made me a more rounded person(全面发展的人)。
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