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【多选题】
以下对于握手的动作要领说法正确的是()A.
行礼距握手对象约一米处
B.
行礼时双腿立正，上身略前倾
C.
相握的双手应上下较大幅度晃动
D.
行礼避免看对方
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【简答题】As you know, 'being green' means that you care about the environment(环境) and that you do what you can to help the Earth. Recycling(回收利用)paper and cans, reducing waste, and pro-tecting wildlife are all...
【单选题】Can you lend me the magazine _____ last week?
A.
you bought it
B.
that you bought
C.
that you bought it
D.
which you bought it
【简答题】计算机软件系统包括( )。 (A) 系统软件和应用软件 (B) 编辑软件和应用软件 (C) 数据库软件和工具软件 (D) 程序和数据
【单选题】It's the third time______late this week. A that you are B you are C when you arrived D that you have been
A.
that you are
B.
you are
C.
when you arrived
D.
that you have been
【判断题】歼-5 型飞机的仿制成功,实现了周恩来总理 1953 年提出的空军所需歼击机在 1956 年、1957 年两年间国内自给的设想,结束了空军飞机完全依赖进口的局面。
A.
正确
B.
错误
【单选题】As you know, 'being green' means that you care about the environment (环境) and that you do what you can to help the Earth. Recycling (回收利用) paper and cans, reducing waste, and protecting wildlife are a...
A.
persuade the reader to waste less
B.
explain the meaning of the word 'green'
C.
encourage people to buy this issue
D.
call on people to protect the environment
【单选题】黄粉虫产卵期成虫饲养,用麦麸( )%、鱼粉4.0%、玉米粉( )%、食糖4%、饲用复合维生素0.8%、饲用混合盐适量。
A.
70.5、25；
B.
75、16；
C.
44、40；
D.
60、30
【单选题】坡度差w=i2-i1 (i 分别为变坡点前后直坡段的坡度值,上坡取 “ + ”,下坡取“ - ”)当 w< 0 时,设置的曲线为 ( ) 。
A.
凹曲线
B.
凸曲线
C.
圆曲线
D.
过渡曲线
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