皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
下列物质中,标准摩尔生成焓不为零的是( )
A.
Br 2 (l)
B.
O 3 (g)
C.
P 4 ( 白磷, s)
D.
C( 石墨, s)
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】计算: (1)(- )×(-1 )÷(-2 ); (2)-6÷(-0.25)× 。
【简答题】magnetic field coil
【单选题】I usually _____ the newspaper of that day when I am having breakfast.
A.
read of
B.
read through
C.
read about
D.
read out
【单选题】A residual magnetic field is always?
A.
Stronger than the magnetic field producing it
B.
Weaker than the magnetisiing field producing it
C.
Equal to the magnetising field producing it
D.
None of the above
【判断题】对于任意两个随机事件A、B,有P(A∪B)=P(A)+P(B)-P(AB)
A.
正确
B.
错误
【单选题】《礼记·哀公问》:“大婚为大,大婚至矣。大婚既至,冕而亲迎”,记载的是婚姻六礼中的( )。
A.
请期
B.
纳征
C.
亲迎
D.
问名
【简答题】计算: 小题1:(1)(6分) ; 小题2:(2)(6分) .
【简答题】已知(1-2x) 6 =a 0 +a 1 x+a 2 x 2 +…+a 6 x 6 ,则|a 0 |+|a 1 |+|a 2 |+…+|a 6 |=(    )。
【单选题】I can’t pretend ________ happy when I am not.
A.
to be
B.
to have been
C.
being
D.
having been
【单选题】–Were you at school when he came to see you? –Yes, I ______ a math class.
A.
was having              
B.
had                 
C.
am having
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题