皮皮学，免费搜题
登录
搜题
【单选题】
已知某挖土机挖土的一次正常循环工作时间是2min，每循环工作一次挖土0．5m3，工作班的延续时间8h，机械正常利用系数为0．8，则其产量定额为（ ）m3/台班。A.
96
B.
120
C.
150
D.
300
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】在无功电源并不缺乏的电力系统中，关于是否需要增加无功补偿装置，下述说法中正确的是（）
A.
绝对不应增加无功补偿装置
B.
可以增加无功补偿装置，但应遵守最优网损微增率准则
C.
可以增加无功补偿装置，但应遵守等网损微增率准则
D.
应增加无功补偿装置，直到各节点的网损微增率均为正值为止
【单选题】--- What class are you in ? --- I’m in .
A.
Class Two Grade（年级） Seven
B.
Class two Grade seven
C.
Class two Grade Seven
【单选题】— What class are you in? — I'm in ______. [ ]
A.
Class Two, grade seven
B.
Class two, Grade seven
C.
Class Two, Grade Seven
【简答题】阅读理解。 During my ninth-grade year, I suffered from anorexia nervosa: it was not enough to be thin. I had to be the thinnest. Now, however, fully recovered, I can reflect (反思)back and realize that my wi...
【简答题】阅读理解。 During my ninth-grade year, I suffered from anorexia nervosa: it was not enough to be thin. I had to be the thinnest. Now, however, fully recovered, I can reflect (反思) back and realize that my w...
【单选题】I'm in . [ ]
A.
Class one, Grade two
B.
class One, grade, Two
C.
Class One, Grade Two
【单选题】Grade Three students have a ______ to work harder than those in Grade Two.
A.
courage
B.
wisdom
C.
devotion
D.
tendency
【单选题】Ben and Tony are in ______. [ ]
A.
Seven Grade, Two Class
B.
Class Two, Grade Seven
C.
seven grade, two class
D.
class two, grade seven
相关题目：
参考解析：
知识点：
题目纠错 0
发布
