皮皮学，免费搜题
登录
搜题
【判断题】
水准测量不是直接测定地面点的，而是测出两点间的高差，进而由已知点推求未知点。A.
正确
B.
错误
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】简述胎盘的组成、血液循环及功能。
【单选题】Keith doesn't seem to be his ______ self these days and we should pay more attention to him.
A.
ordinary
B.
common
C.
usual
D.
average
【简答题】简述胎盘屏障的组成和功能。
【单选题】Because we know more about material than ______ our ancestor, we should be able to select better ones.
A.
do
B.
know
C.
knew
D.
did
【简答题】简述胎盘的结构及胎盘功能
【简答题】I think we should be trying to encourage more sort of(绿色交通).
【单选题】关于胎盘功能错误的为
A.
供给营养物质及排泄作用
B.
能替代胎儿呼吸功能
C.
IgG可通过胎盘使胎儿获得抗体
D.
能防御细菌、病毒及药物通过
E.
能合成激素和酶
【多选题】When listening to an introduction of an event, we should be more concerned with:
A.
What does he/she do?
B.
What happened?
C.
What are the causes?
D.
When and where does it take place?
E.
What consequences does it bring about?
【简答题】请简述胎盘都有哪些功能?
相关题目：