骨髓增生异常综合征患者的骨髓增生程度多在（） A.全血细胞减少 B.活跃以上 C.明

液态物质，分子间距离比较大，粒子间的作用比固体的小，因而，液体没有固定的_________，具有_________．

In your project, you are in the process of creating an activity list. This should contain all the following EXCEPT ______ .

A．activities that are not required as part of project scope

B．activities that are to be performed as part of the project

C．activity identifier and scope of work description for each schedule activity

D．all the above are included in the activity list

能通过自分泌和旁分泌促进T淋巴细胞增殖的细胞因子是（）。

A.TNF-b

B.IL-1

C.IL-4

D.IL-2

E.TNF-a

机织物经纬密度不变，经纬纱越粗，织物的紧度（）。

旅游列车按（）计算票价。

A.分段

B.按实际径路

C.单程里程通算

D.按最短径路