致畸作用的毒理学特点有以下几个，但不包括A、器官发生期的胚胎对致畸物最为敏感B、剂量与效应关系

It is said that no rose grows without a thorn. The italicized part functions as a(n)______in me sentence.

A．appositive

B．attributive

C．adverbial

D．adjective

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属于卵巢良性肿瘤的是

A、内胚窦癌

B、颗粒细胞瘤

C、卵泡膜细胞瘤

D、库肯勃瘤

E、浆液性囊腺癌

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前言篇幅不宜过长，一般为()字。

A.50-100

B.100-200

C.200-300

D.300-400

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将体型分为长躯型、中躯型和短躯型所依据的指标是

A.肺活量指数

B.握力指数

C.BMI指数

D.身高坐高指数

E.身高体重指数

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Which of the following would best summarize the authors comment on the book？

A．It hasn"t brought the desired result but contains useful knowledge.

B．It is quite boring without pictures the readers expect it to display.

C．It properly presents the outstanding work the IMF has completed.

D．It turns out to be a book introducing the historical work of the IMF.

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