皮皮学,免费搜题
登录
搜题
【判断题】
气体常数R的单位是J/(kmol·K),而通用气体常数R0=8314J/(kg·K)。
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
【单选题】PF-5.0-WA-Y中WA的意思是()。
A.
卧式安装
B.
型号WA
C.
卧式明装
【单选题】CBR试验,泡水后试件吸水量Wa为( )。
A.
Wa=泡水后试件质量-泡水前试筒和试件质量
B.
Wa=泡水前试筒和试件质量-泡水后试筒和试件质量
C.
Wa=泡水后试筒和试件质量-泡水后试筒质量
D.
Wa=泡水后试筒和试件质量-泡水前试筒和试件质量
【单选题】warrn
A.
/wo:rn/
B.
/wa:rn/
C.
/wa:rn/
【单选题】图所示三个单跨梁的自振频率分别为wa、wb、wc,其之间关系为( )。
A.
wa>wb>wc
B.
wa>wc>wb
C.
wc>wa>wb
D.
wb>wa>wc
【单选题】中国佛教史上对中国文化思想影响最广一泛的佛教宗派是( )。
A.
禅宗
B.
天台宗
C.
华严宗
D.
法相宗
【单选题】The desegregation was achieved through a number of struggles,_____have been mentioned in previous chapters.
A.
a few of which
B.
a few of them
C.
a few of those
D.
a few of that
【单选题】The desegregation was achieved through a number of struggles, ______had been mentioned in the previous chapters.
A.
a few of which
B.
a few of them
C.
a few of those
D.
a few of that
【单选题】如果一国总人口是1000万,劳动年龄人口是800万,劳动人口是720万,那么失业率是
A.
28%
B.
20%
C.
10%
D.
无法计算
【单选题】The desegregation was achieved through a number of struggles, ________ been mentioned in previous chapters.
A.
a few of which
B.
a few of them
C.
a few of those
D.
a few of that
【简答题】在成分三角形中,找出P(wA=70%,wB=20%,wC=10%)、Q(wA=30%,wB=50%,wC=20%)、N(wa=30%,wB=10%,wC=60%)合金的位置。若将5kg P合金、5kg Q合金和10kg N合金熔合在一起,试求新合金的成分。
相关题目: