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1963年由Lqjeune-等首先报道,因患儿具特有的____哭声,故又称为____。

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His oral English is _____ than his brother's.

A. well
B. good
C. better
D. fine

恶性肿瘤的发生是复杂的,多步骤的()。

I would rather _____ a job and earn money.

A. to find
B. finding
C. found
D. find

蛋白激酶类细胞癌基因的产物为某种__,与生长因子结合后,形成蛋白质酪氨酸激酶,触发细胞内的一系列反应。例如,ERBB1癌基因的产物为表皮生长因子受体。

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