皮皮学,免费搜题
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搜题
【多选题】
在哪种场合下禁止使用手机
A.
驾驶汽车的时候
B.
加油站、面粉厂、油库等易燃场合
C.
飞机飞行期间
D.
上班期间
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【单选题】货船应在()内进行一次救生演习,若有()船员未参加上一个月的演习,则应在离港后24小时内举行这样的演习。
A.
一个月/20%
B.
二个月/25%
C.
一个月/25%
D.
二个月/20%
【单选题】货船应在_____内进行一次救生演习,若有_____船未参加上一个月的演习,则则应于离港后24小时内进行一次。
A.
1个月,20%
B.
2个月,25%
C.
1个月,25%
D.
2个月,20%
【简答题】We come by business naturally in our family. Each of the seven children in our family worked in our father’s store. 11 we worked and watched, we learned that work was about more than 12 and a s...
【单选题】二进制信源的熵为1bit/符号,该信源中“1”出现的概率是()。
A.
1
B.
1/2
C.
1/4
D.
1/8
【单选题】货船应在_____月内进行一次救生演习,若有_____船员未参加上一个用的演习,则应在设港后24小时内举行这样的演习。
A.
1/20%
B.
4/25%
C.
1/25%
D.
2/20%
【单选题】在力学上把大小相等、方向相反、作用线相互平行的两个力,称为( )
A.
力矩
B.
力偶
C.
合力
D.
平衡力
【简答题】We come by business naturally in our family.Each of the seven children in our family worked in our father’s store.As we worked and watched,we ____ that work was about more than ____ and a sale....
【简答题】Fill in the blanks with the following words in their appropriates forms. award, reward, incidence, incident, sprout, spout, respectable, respective, respectful A youth was seriously injured in a shoot...
【单选题】—______ free education, the poor children in our hometown can go back to school. —So can the children in our hometown. [     ]
A.
Thanks to
B.
Instead of
C.
As for
D.
Towards
【单选题】工程测量中最常用的距离测量方法为( )
A.
钢尺量距
B.
视距测量
C.
光电测距
D.
目估测距
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