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【单选题】
酶蛋白分子中，参与酸碱催化的最主要的基团是A.
氨基
B.
羧基
C.
酚基
D.
咪唑基
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【简答题】完形填空。 We call the Chinese New Year the Spring Festival. There is a name 1 each Chinese year. We may call it the year of the 2 , the year of the monkey or the year of the dog. Before New Year's Day, pe...
【单选题】《工会法》规定，企业、事业单位无正当理由拖延或拒不拨缴工会经费，基层工会或上级工会可以向（ ）申请支付令。
A.
总工会
B.
当地人民法院
C.
当地劳动部门
D.
当地工商管理部门
【简答题】用适当的介词填空。 1. ___our great disappointment, he didn't attend such an important meeting. 2. The driver's carelessness led____the terrible car accident. 3.1 would stay at home instead____going out shoppin...
【简答题】Complete the fllowing sentences with right words 1. We will _________________ your suggestion in this new plan. 2. The heavy rain _________________ the flow of traffic yesterday. 3. She ____________...
【简答题】完形填空。 Lucy's mother is a pretty woman. She likes new clothes, and she buys many new clothes. They are 1 _ . Every Saturday she goes shopping 2 her friends. Sometimes she buys clothes, and sometimes sh...
【简答题】We will _________________ your suggestion in this new plan. 2. The heavy rain _________________ the flow of traffic yesterday. 3. She _________________ no emotion on the witness stand. 4. The restaura...
【简答题】脑和脊髓表面保有三层被膜,由外向内依次是 _____________ 、 _____________ 和 _____________ 。
【简答题】A new study says a 【 1 】 insecticide is damaging wild bee 【 2 】 . Wild bees are important, because they pollinate 【 3 】 and wild plants. Environmentalists in the United States and 【 4 】 say this insec...
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