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【单选题】
视杆细胞的感光色素是()A.
视紫红质
B.
视黄醛
C.
视紫蓝质
D.
视质
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【单选题】He has two children,______have become world-famous scientists.
A.
none of who
B.
all of whom
C.
both of whom
D.
one of which
【简答题】色彩的变化是创意本身得以深化或减弱;色彩可以帮助观者识别 ,理解 ,认识其 ,并留下深刻的印象和记忆
【简答题】阅读理解。 Leo is sixty-six. But he looks young. He has two children: One is a son and the other is a daughter. He has 10 tennis rackets, 8 baseballs, 6 basketballs, 12 soccer balls and 18 volleyballs, but...
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【单选题】He has two children and ____ love him.
A.
both of them
B.
all of them
C.
each of them
D.
everyone of them
【单选题】He has two children, have become world-famous scientiests.
A.
none of who
B.
all of whom
C.
both of whom
D.
one of which
【单选题】He ______ think he was wrong ______ I showed the answer to him. [ ]
A.
didn't; at all
B.
didn't; until
C.
won't; until
D.
not; until
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