题目内容

釉质的哪一层抗龋能力最强

A. 表层0.1~0.2mm B.表层0.2mm以内
B. 中层
C. 内层
D. 各层抗龋能力一致

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Kathy ()to South Korea more than five times

A. have been
B. has went
C. gone
D. has been

Our students are free to study () interests them.

A. that
B. which
C. whatever
D. anything

治疗慢性肾炎主要是

A. 消除蛋白尿
B. 消除血尿
C. 控制感染
D. 应用血小板解聚药
E. 防止或延缓肾功能衰竭

不属于新生儿骨髓炎病因的是

A. 产道感染
B. 脐带感染
C. 母亲患化脓性乳腺炎
D. 泪囊感染
E. 医源性感染

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