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【单选题】
以下关于未成年工的特殊劳动保护的各项主要内容中，（）说法是不正确的
A.
我国规定未成年工的最低就业年龄为15周岁
B.
不得安排未成年工从事矿山井下、有毒有害的劳动
C.
用人单位应当对未成年工定期进行健康检查
D.
未成年工使用和特殊保护实行登记制度
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参考答案：
举一反三
【单选题】Seldom _____ TV programs during the day. A. they watch B. watch they C. they are watching D. do they watch
A.
they watch
B.
watch they
C.
they are watching
D.
do they watch
查看完整题目与答案
【单选题】Jack  is  watching  NBA  now.  It  is______. of him to slip out of the classroom to watch the NBA finals during the final season. [     ]
A.
normal
B.
ordinary
C.
common
D.
typical
查看完整题目与答案
【单选题】During the watch keeping at sea, at appropriate intervals inspection should be made of ____, auxiliary machinery and steering gear spaces by the duty engineer.
A.
the main propulsion plant
B.
lifesaving jackets
C.
lifeboat engine
D.
state of emergency generator
查看完整题目与答案
【多选题】在下列各组酸碱组分中，不属于共轭酸碱对的是
A.
HAc—NaAc
B.
H 3 PO 4 —H 2 PO 4 -
C.
+ NH 3 CH 2 COOH—NH 2 CH 2 COO -
D.
H 2 CO 3 —HCO 3 -
E.
CO 3 2- —H 2 CO 3
查看完整题目与答案
【单选题】给定序列{50,72,43,85,75,20,35,45},按表中元素的顺序依次插入,建立一棵二叉排序树以后,查找元素35要进行( )次元素间的比较。
A.
4
B.
5
C.
7
D.
1 0
查看完整题目与答案
【单选题】During the watch keeping at sea, the engineer in charge should notify______in the event of any serious occurrence or a situation where he is unsure of the action to take
A.
the master
B.
the chief engineer
C.
the bridge
D.
the company superintendent
查看完整题目与答案
【单选题】During the winter sleep, black bears always______.
A.
sleep like other woodland animals
B.
keep their normal temperature
C.
breathe regularly nine times per minute
D.
live on body fat
查看完整题目与答案
【简答题】认真观看“砥砺奋进的五年”大型成就展第九展区,从七个方面中选择其中一项(选择哪一项一定要在回答中注明清楚,如我选择1.准确把握时代大势 开启大国外交新征程),具体结合自己的家乡,描述一下这五年家乡在这方面上的变化,需要有图有真相,家乡一定要写详细(如某省某市某县某镇某村某屯某大队)。 具体格式如下:1.我选择的是..........(填哪一项) 2.第九展区主要讲了.......(做简单陈述) 3...
查看完整题目与答案
【简答题】根据事务的操作流程,完成下面连线题目。
查看完整题目与答案
【单选题】依次插入序列(50,72,43,85,75,20,34,45,65,30)后建立的二叉搜索树中,查找元素30要进行( )次元素间的比较。
A.
4
B.
5
C.
7
D.
10
查看完整题目与答案
相关题目：
【单选题】Seldom _____ TV programs during the day. A. they watch B. watch they C. they are watching D. do they watch
A.
they watch
B.
watch they
C.
they are watching
D.
do they watch
查看完整题目与答案
【单选题】Jack  is  watching  NBA  now.  It  is______. of him to slip out of the classroom to watch the NBA finals during the final season. [     ]
A.
normal
B.
ordinary
C.
common
D.
typical
查看完整题目与答案
【单选题】During the watch keeping at sea, at appropriate intervals inspection should be made of ____, auxiliary machinery and steering gear spaces by the duty engineer.
A.
the main propulsion plant
B.
lifesaving jackets
C.
lifeboat engine
D.
state of emergency generator
查看完整题目与答案
【多选题】在下列各组酸碱组分中，不属于共轭酸碱对的是
A.
HAc—NaAc
B.
H 3 PO 4 —H 2 PO 4 -
C.
+ NH 3 CH 2 COOH—NH 2 CH 2 COO -
D.
H 2 CO 3 —HCO 3 -
E.
CO 3 2- —H 2 CO 3
查看完整题目与答案
【单选题】给定序列{50,72,43,85,75,20,35,45},按表中元素的顺序依次插入,建立一棵二叉排序树以后,查找元素35要进行( )次元素间的比较。
A.
4
B.
5
C.
7
D.
1 0
查看完整题目与答案
【单选题】During the watch keeping at sea, the engineer in charge should notify______in the event of any serious occurrence or a situation where he is unsure of the action to take
A.
the master
B.
the chief engineer
C.
the bridge
D.
the company superintendent
查看完整题目与答案
【单选题】During the winter sleep, black bears always______.
A.
sleep like other woodland animals
B.
keep their normal temperature
C.
breathe regularly nine times per minute
D.
live on body fat
查看完整题目与答案
【简答题】认真观看“砥砺奋进的五年”大型成就展第九展区,从七个方面中选择其中一项(选择哪一项一定要在回答中注明清楚,如我选择1.准确把握时代大势 开启大国外交新征程),具体结合自己的家乡,描述一下这五年家乡在这方面上的变化,需要有图有真相,家乡一定要写详细(如某省某市某县某镇某村某屯某大队)。 具体格式如下:1.我选择的是..........(填哪一项) 2.第九展区主要讲了.......(做简单陈述) 3...
查看完整题目与答案
【简答题】根据事务的操作流程,完成下面连线题目。
查看完整题目与答案
【单选题】依次插入序列(50,72,43,85,75,20,34,45,65,30)后建立的二叉搜索树中,查找元素30要进行( )次元素间的比较。
A.
4
B.
5
C.
7
D.
10
查看完整题目与答案
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