题目内容

膀胱癌常见的组织类型是

A. 非上皮性肿瘤
B. 鳞状细胞癌
C. 腺癌
D. 绒毛膜上皮癌
E. 移行细胞癌

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IgA肾病是最常见的原发性肾小球疾病。

A. 对
B. 错

______ you ever ______ to Boston?

A. Have; been
B. Has; been
C. Have; be
Did; been

______ you ______ to Boston last year?

A. Do; go
B. Have; gone
C. Did; go
Did; went

Julie ______ already ______ breakfast.

A. has; eat
B. have; eaten
C. has; ate
D. has; eaten

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