皮皮学,免费搜题
登录
搜题
【简答题】
有五张卡片,它们的正、反面分别写着0与1,2与3,4与5,6与7,8与9,将其中任意三排放在一起组成三位数,共可组成多少个不同的三位数?
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】在机床夹具上布置六个支承点,限制的自由度数为 ( ) 。
A.
六个
B.
不确定
C.
三个
D.
四个
【简答题】When it comes to friends, people always know this old saying——A friend in need is a friend indeed. The best friend a man has in the world may him and become his enemy. His son or daughter that he has ...
【单选题】由形态相同或相似的细胞群,以一定的形式连接,形成担负一定机能的结构称为( )
A.
器官
B.
组织
C.
系统
D.
细胞群
【单选题】《铁路交通事故调查处理规则》规定,由于机车车辆冲撞造成货物窜动将车辆撞坏、挤坏时,定()事故。
A.
冲撞
B.
冲突
C.
列车
D.
车辆
【简答题】试述单核吞噬细胞系统的定义、细胞来源、组成和分布。
【单选题】相对其他肌组织而言,心肌组织中含量最多的肌酸激酶(CK)同工酶是()
A.
CK-BB
B.
CK-AA
C.
CK-MM
D.
CK-MB
E.
CK-MA
【判断题】在钻头后面开分师槽,可改变钻头后角的大小。
A.
正确
B.
错误
【单选题】My friend comes from __________ north of country.
A.
the
B.
a
C.
an
D.
\
【单选题】— I think you'd better type this letter again before Mr. Smith see it. — Oh, dear! _____ [     ]
A.
Who cares?
B.
No problem
C.
I don't mind at all
D.
Is it as bad as that?
【单选题】Let's take a walk before we start to study again. 'Oh, I think it's ______ for walking.'
A.
much too hot
B.
very much hot
C.
too much heat
D.
very much heat
相关题目: