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【单选题】
M: I think it’s going to be a nice day. W: It’s certainly a big improvement over yesterday. M: But it’s supposed to get cloudy and windy again this afternoon. What was the weather like yesterday?A.
It was fine.
B.
It was cloudy and windy.
C.
It was worse than today.
D.
It was sunny.
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】______ he has to stay here.
A.
No matter he likes it
B.
However he likes it
C.
Whether he likes it or not
D.
Until he likes it
【简答题】基因工程的最终目的是?
【单选题】. My uncle will come to Shanghai ______ next week .He says he will stay here for______.
A.
sometimes; sometime
B.
sometime ;some time
C.
some time ;sometimes
D.
some times ;sometimes
【单选题】以下有关基因工程的叙述，正确的是： [ ]
A.
基因工程是细胞水平上的生物工程
B.
基因工程的产物对人类都是有益的
C.
基因工程产生的变异属于人工诱变
D.
基因工程育种的优点之一是目的性强
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