皮皮学，免费搜题
登录
搜题
【判断题】
《诗经》中十五国风共 160 首,大部分是贵族文人的创作的。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】利用波长为λ=0.59μm的平行单色光照射光栅，已知光栅上每毫米宽度内刻500条狭缝，透光狭缝宽度a=1×10 -3 mm．试求：
【单选题】PartI Vocabulary & Structure ( 25 points, 1 point for each item) Se c tion A Directions: There are 15 incomplete statements here. Complete each statement by choosing the appropriate answer from the 4 ...
A.
out, for
B.
off ,to
C.
out, in
D.
away, on
【单选题】下列有关准直器的描述，错误的是
A.
准直器狭缝宽度决定线束宽度
B.
准直器狭缝宽度决定扫描层厚
C.
准直器窗口呈狭缝状态
D.
准直器狭缝宽度决定扫描层距
E.
准直器位于X线窗口前端
【单选题】Section two Part 3 News item 2 B: listen to the news item again and choose the best answer to complete each of the following sentences. 1 Oppositions parties are demanding 1 after a violent protest ov...
A.
a new election
B.
a new selection
C.
a new elector
D.
a new selector
【单选题】Directions: Listen to the news item and complete the following summary. Choose the best answer to complete each of the following sentences. [音频] This news item is about 1) ________.
A.
the violent protest over voting problems in Yemen
B.
the local council election in Yemen
C.
the ruling General People's Congress Party in the lead
D.
the people killed and injured during the voting in Yemen
【单选题】单色光的纯度可用仪器的狭缝宽度调节,宽度增加将会使( )
A.
单色光的纯度变差，测定灵敏度下降
B.
单色光的纯度变好，测定灵敏度下降
C.
单色光的纯度变差，测定灵敏度提高
D.
单色光的纯度变好，测定灵敏度提高
【单选题】Choose the best item to complete each of the following sentences. 1、 There’s no supermarket in the _____ area.
A.
immediate
B.
temporary
C.
recent
D.
brief
【单选题】Choose the best item to complete each of the following sentence. 6.This sentence doesn't make any______.
A.
benefit
B.
sense
C.
help
D.
meaning
相关题目：
【单选题】下列有关准直器的描述，错误的是
A.
准直器狭缝宽度决定线束宽度
B.
准直器狭缝宽度决定扫描层厚
C.
准直器窗口呈狭缝状态
D.
准直器狭缝宽度决定扫描层距
E.
准直器位于X线窗口前端