下列哪项不符合骨髓纤维化（） A.多见于40岁以上 B.可有骨骼疼

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问题单项选择题

下列哪项不符合骨髓纤维化（）

A.多见于40岁以上

B.可有骨骼疼痛

C.常出现干抽

D.患者骨髓中造血细胞均减少

E.骨髓病理学检查将本病分为3期

答案

参考答案：D

选择题

— How much is the ticket to the West Lake ?

—A one way ticket ＄40,and you can spend another ＄20 for a round—trip.

A. pays B. costs C. takes

单项选择题

When people have no will to live, people are often very difficult to help.

A．you are

B．they are

C．it is

D．the other is