皮皮学，免费搜题
登录
搜题
【单选题】
真毛细血管不具有下列哪一项特点A.
管壁薄
B.
血流缓慢
C.
管壁的通透性大
D.
是血液和组织液进行物质交换的场所。
E.
安静时，骨骼肌中大约有80%的真毛细血管处于开放状态
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
【简答题】When and where were the memos published?
【单选题】—Such a stupid mistake could have been avoided. —Unfortunately, he______the mistake again and again.
A.
repeated
B.
would repeat
C.
had repeated
D.
would have repeated
【简答题】When and where were the two World Expositions held respectively in China?
【简答题】人工挖孔桩,长钢套管护壁 ,1~3根桩、条形桩基沿垂直轴线方向和群桩基础易的边桩 ,桩位的允许偏差()
【多选题】关于三面投影体系，正确的说明有（）
A.
在三面投影体系中，三个投影面是相互垂直的
B.
V投影面与W投影面之间的交线称为X轴线
C.
V投影面与H投影面之间的交线称为X轴线
D.
V投影面与W投影面之间的交线称为z轴线
E.
W面的投影图，称为正立投影图
【判断题】So striking, so sensational, was the news that, years after the event, many people can still remember exactly where they were and what they were doing when they first heard it. The above inverted sent...
A.
正确
B.
错误
【单选题】人工挖孔桩,长钢套管护壁 , 1~3 根桩、条形桩基沿垂直轴线方向和群桩基础中的边桩 ,桩位的允许偏差()
A.
± 20
B.
± 50
C.
± 75
D.
± 100
【单选题】---That must be a mistake. ---No, it ___ a mistake.
A.
must not be
B.
needn’t be
C.
cannot be
D.
may be not
相关题目：