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【单选题】
气缸体内引导活塞做往复运动的圆柱形空腔称为()。A.
A气缸体
B.
B气缸垫
C.
C气缸
D.
D气缸壁
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举一反三
【单选题】Please select from the following statements that describe report writing the incorrect one.
A.
Reports are a highly structured form of writing.
B.
Report writing is an essential skill for ordinary writers.
C.
Presents information as clearly and succinctly as possible.
D.
---
【单选题】听力原文：Which of the following is NOT mentioned as a benefit of writing a book report? (35)
A.
Reading comprehension.
B.
Ability to analyze.
C.
English proficiency.
D.
Writing.
【简答题】正常成人二尖瓣瓣口面积为______cm 2 ，若小于______cm 2 ，即可产生血流障碍。
【单选题】The purpose of the course Technical Report Writing is __________.
A.
to tell them how to write their thesis
B.
to improve students’ international communication ability in oral expression
C.
to teach them how to carry out an experimental investigation
D.
to improve students’ international communication ability in their future study and work scenario and to promote their understanding of English technical report writing styles, etc.
【多选题】下列关于木枕的特点正确的有( )
A.
弹性好，易加工，运输、铺设方便，有较好的绝缘性能
B.
使用寿命短,轨道几何形位不易有效保持,并且造成了树木资源的大量耗费
C.
木枕的使用范围在不断缩小
D.
使用寿命长，具有较高的道床阻力，提高线路稳定性
【多选题】有关小儿能量和水的需要量正确的有（ ）
A.
幼儿每天每公斤体重所需热量376KJ
B.
幼儿每天每公斤体重所需水125ml
C.
婴儿每天每公斤体重所需水150ml
D.
婴儿每天每公斤体重所需热量460KJ
E.
幼儿每天每公斤体重所需水100ml
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