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【单选题】
葡萄糖的作用是（ ）。A.
抑菌剂
B.
等渗调节剂
C.
抗氧剂
D.
润湿剂
E.
助悬剂
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【单选题】The scientists discovered DNA that _____belonged______to the phone's speaker on each of the phones
A.
moved
B.
changed
C.
belonged
D.
turned
【简答题】听力原文：Man: I discovered at an early age that I only did well at something if I enjoyed doing it. I didn't like maths at school so I never got good results, but sport was different. So, now I work for E...
【简答题】[选做题]在4-1和4-2两题中选答一题. 4-1.补充完成“按权展开式”: ____ 答案: 4-2. 某班从甲、乙、丙三名候选人中选举一名学生代表,每张选票上只能选一人或不选.全班50名同学都参加了投票,得票情况如图,则学生乙的得票数是____.
【简答题】[选做题]在4-1和4-2两题中选答一题. 4-1.补充完成“按权展开式”: ____ 4-2. 某班从甲、乙、丙三名候选人中选举一名学生代表,每张选票上只能选一人或不选.全班50名同学都参加了投票,得票情况如图,则学生乙的得票数是____.
【单选题】—Did you have a good May Day holiday? —________. We enjoyed ourselves in the Summer Palace. [ ]
A.
I'm not sure
B.
I hope so
C.
Of course
D.
I'm afraid not
【简答题】A．They are unimportant and should be disregarded. B．They may give us helpful clues about ourselves. C．Only a trained psychologist can interpret them with success. D．They should never be interpreted li...
【简答题】12 Passage Three Questions 23 to 25 are based on the passage you have just heard. 23.A)They help us see the important values of a culture. B)They guide us in handing human relationship. C)They help us...
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