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【单选题】
真菌毒素的特点是( )A.
分子结构复杂
B.
对热稳定，一般的加热温度不被破坏
C.
引起的中毒无季节性、地区性
D.
反复接触，机体可产生抗体
E.
抗生素治疗有效
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【简答题】True or false. 填写 T 或者 F ( ) 1. They went to the river bank to have a picnic. ( ) 2. George was full at last. ( ) 3. They did not buy any fish from that man because he had nothing to sell. ( ) 4. The ...
【单选题】—What did Tom do last Friday night? —He did nothing. He just___ _ on the street. [ ]
A.
ran after a dog
B.
played football
C.
hung out
D.
went shopping
【简答题】Complete the conversation with the words in the box. something anything nothing everything A: What did you do last night? B: 1. . I stay at home. A: Did you do 2. the night before? B: Yes, I ...
【单选题】听力原文：A: Did you do anything last weekend? B: Not much. What did you do? A: I had planned to go skiing or do some shopping, but wound up studying. What did the man do last weekend?
A.
He went skiing.
B.
He studied.
C.
He did nothing.
D.
He did shopping.
【简答题】compact 1 effective 2 small 3 solid 4 useful 5 group 6 kitchen 7 medicine 8 string 填入答案序号()()()()
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