皮皮学，免费搜题
登录
搜题
【单选题】
男性节育的机制是( )。A.
阻止精子进入阴道
B.
减少精子生成
C.
抑制雄性激素分泌
D.
抑制性功能
E.
阻止精子与卵子结合
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】We have an English class 9:00 and 10:00 in the morning. [ ]
A.
between
B.
from
C.
at
D.
of
【简答题】三化螟是寡食性昆虫。()
【多选题】关于审核审核单证的必要性,下列表述正确的是
A.
合理审查报关单证是有法律依据的
B.
合理审查报关单证是对客户负责
C.
合理审查报关单证是为了降低报关差错
D.
合理审查报关单证是为了提高通关效率
【简答题】Mr. Smith is an English . He teaches English . His English are very interesting. He likes us and we like him, . Mr. Smith has children—Tom and Mary. Tom is seven and sister, Mary, is four. Tom goes to...
【单选题】–Hi, Tina, we’re going to Sam’s house to celebrate his graduation, would you like to _________? --Great! Let’s go.
A.
come up
B.
come on
C.
come out
D.
come along
相关题目：