皮皮学,免费搜题
登录
搜题
【简答题】
在建筑群子系统所采用的铺设,能够对线缆提供最佳保护的方式是 A) 卷道 B) 架空 C) 直埋 D) 地下管道
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
【判断题】硬质合金是用粉末冶金法制造的合金材料,由硬度和熔点很高的碳化物和金属粘结剂组成。( )
A.
正确
B.
错误
【单选题】若 x 3y = y 2x-5y = 6x-15y x ,则 4 x 2 -5xy+6 y 2 x 2 -2xy+3 y 2 的值是(  )
A.
9 2
B.
9 4
C.
5
D.
6
【单选题】下列说法不正确的是 [     ]
A.
若x=y,则3﹣x=3﹣y
B.
若x=y,则0.5x=0.5y
C.
若﹣4a=﹣4b,则a=b
D.
若m+5=n﹣5,则m=n
【单选题】下列等式变形中不正确的是 [     ]
A.
若x=y,则x+5=y+5
B.
若 ,则x=y
C.
若-3x=-3y,则x=y
D.
若mx=my,则x=y
【单选题】下列运用等式的性质,变形正确的是 [     ]
A.
若x=y,则x﹣5=y+5
B.
若a=b,则ac=bc
C.
若 ,则2a=3b
D.
若x=y,则
【单选题】He can speak English a native speaker.
A.
as good as
B.
better
C.
well than
D.
as well as
【单选题】Can Mr. Smith, _____ native language is English, speak Chinese fluently? [       ]
A.
whose
B.
whom
C.
that
D.
who
【单选题】若x>y,则下列结论中正确的是(  )
A.
x-1<y-1
B.
-3x<-3y
C.
5x<5y
D.
2x<3y
【单选题】The constitutional guarantee of free speech may have been aimed at protecting native speakers of English from censorship, but it is not a great ______ to interpret it as protecting the right to expres...
A.
mystery
B.
extension
C.
sacrifice
D.
condemnation
【单选题】下列运用等式的性质,变形正确的是(  )
A.
若x=y,则x-5=y+5
B.
若a=b,则ac=bc
C.
若 a c = b c ,则2a=3b
D.
若x=y,则 x a = y a
相关题目: