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【单选题】
Where were the American and British aircrafts' targets?A.
Their targets were near Pentagon.
B.
Their targets were five miles away from Baghdad.
C.
Their targets were below the 32nd parallel.
D.
Their targets were near the parallel where Iraqi civilians are not allowed to go.
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【多选题】关于常染色质和异染色质的区别,下列论述正确的是:
A.
细胞分裂间期异染色质区的染色质线仍高度螺旋化而紧密卷缩的，故能染色很深。
B.
常染色质区的染色质线脱螺旋而呈松散状态，故染色很浅，不易看到。
C.
常染色质可经转录表现为活跃的遗传功能。
D.
异染色质一般不编码蛋白质，只对维持染色体结构的完整性起作用；复制时间总是迟于常染色质。
【单选题】——Hey, can I ask you a favor? ――_______
A.
Here you are
B.
just as I thought
C.
how is it going?
D.
what can I do for you?
【简答题】“碧玉妆成一树高，万条垂下绿丝绦”描写的是____树。
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