皮皮学，免费搜题
登录
搜题
【单选题】
立方势箱中的粒子,具有E=12h2/8ma2的状态的量子数。 是--------- ( )A.
2 1 1
B.
2 3 1
C.
2 2 2
D.
2 1 3
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 don’t have to ________ every word that we don’t know when reading.
A.
look up
B.
refer to
C.
look for
D.
look into
【单选题】I don’t understant this word, Please _______ in the dictionary
A.
look it for
B.
look it up
C.
look up it
D.
look like it
【单选题】—Do Tara and Tina look _______? —No, they don't. They look _______. They are not _______ sisters. [ ]
A.
same; different; twin
B.
the same; different; twin
C.
same; the different; twins
D.
the same; the different: twins
【单选题】Don’t be afraid of new words. You can ______ in the dictionary.
A.
look at them
B.
look for them
C.
look them up
D.
look them over
【单选题】They _____ look the same, _____ they’re good friends.
A.
don’t ;and
B.
don’t;but
C.
aren’t;but
【单选题】Why don’t you come and have a look?
A.
Why don’t
B.
Why not
C.
Why about
D.
What don’t
相关题目：