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【单选题】
慢性粒细胞白血病最具特征性的临床表现是()A.
淋巴结种大
B.
巨脾
C.
牙渗血
D.
面色苍白
E.
胸骨压痛
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反馈参考答案：
举一反三
【简答题】It ______ not be his car.
【单选题】f:A→B为从A到B的一个函数,下列说法正确的有
A.
函数是一个映射
B.
函数要求集合A、B是非空的数集，而映射只要求A、B是两个非空集合就可以了
C.
两种说法均正确
【单选题】It was quite a serious mistake, ____caused by carelessness.
A.
which I think was
B.
I think which was
C.
which I think it was
D.
I think which it was
【单选题】If it for his invitation the other day, I should not be here now.
A.
had not been
B.
should not be
C.
were not to be
D.
should not have been
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