皮皮学，免费搜题
登录
搜题
【单选题】
( )指活塞位于下止点时,活塞顶部与气缸盖之间的空间容积,“V a ”表示。A.
气缸工作容积
B.
气缸总容积
C.
燃烧室容积
D.
排量
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】以下对肥大细胞的描述,哪一项是错误的?
A.
细胞呈圆形或卵圆形，胞质充满嗜酸性颗粒，呈异染性
B.
常沿小血管分布
C.
再次接触少量相同过敏原时，通过一系列反应，可引起过敏
D.
分泌的组织胺能使血管扩张、血管渗透性增加
【单选题】______ is often the case with car accidents, most of the drivers involved have exceed the speed once too often.
A.
This
B.
It
C.
As
D.
Which
【单选题】Which of the following kills the most people in the United States?
A.
Accidents.
B.
Heart disease.
C.
Cancer.
D.
Smoking.
【简答题】Which is one reason why most fights and car accidents are on Saturday night?
【单选题】______is often the case with car accidents, most of the drivers involved have exceeded the speed once too often.
A.
This
B.
It
C.
As
D.
Which
相关题目：