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【简答题】
农药按防治对象分类分为()()()杀螨剂、杀线虫剂、杀鼠剂等
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【简答题】那孩子松开母亲的手时摔倒了。 The boy when he let go of his mother.
【单选题】The reason ______ he gives for not coming is that his mother won’t let him.
A.
for which
B.
why
C.
which
D.
because
【简答题】Give Me a Big Box of Chocolates John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man ...
【单选题】模块结构图中,表示数据信息的符号是( )
A.
带实心圆的箭头
B.
带空心圆的箭头
C.
矩形框
D.
双箭头
【简答题】John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, an...
【单选题】一质点在平面直角坐标系上运动,已知质点位置矢量的两个分量分别为:x=2t;y=6t , 则该质点作[ ]
A.
匀速直线运动
B.
变速直线运动
C.
抛物线运动
D.
一般曲线运动
【单选题】模块结构图中,表示模块的符号是( )
A.
矩形框
B.
箭头
C.
实心圆
D.
空心圆
【单选题】模块结构图中,表示数据信息的符号是( )
A.
矩形框
B.
双箭头
C.
带空心圆的箭头
D.
带实心圆的箭头
【判断题】两质点在平面上运动,已知质点位置矢量的表示式分别为【图片】(其中a、b为常量)和【图片】(式中R、ω皆为常量),则两质点都作曲线运动。
A.
正确
B.
错误
【单选题】The little boy cried and would not _the boy which he wanted his mother to buy for him.
A.
let off
B.
let away
C.
let go of
D.
let alone
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