It is claimed that horse racing was at first the most common outdoor amusement.
A. 据说赛马最初是最平常的户外娱乐活动。
B. 有人说最初最平常的户外娱乐活动是赛马。
C. 有人主张赛马最开始应该是户外娱乐活动。
D. 听说赛马最初是最普遍的户外娱乐。
查看答案
Develop is only cheaper when you are doing a lot of enlargements.
A. 当你做了一些放大工作之后；，冲洗费只会更便宜。
B. 当你做了一些放大工作之后，开发费只会更便宜。
C. 如果你妻放大的照片数量大，冲洗费只会更便宜。
D. 如果你要放大的照片数量大，开发费只会更便宜。
According to the radio program mentioned in the last paragraph, personnel officers ______.
A. made a survey on workers' attitude toward drinking at lunchtime
B. found that workers didn't like to be forbidden from drinking at lunchtime
C. agreed that workers should be fired for drinking at lunchtime
D. thought it intolerant to tell workers when they should not drink
在制作圆弧工件的卡形(弯曲)样板时，______是样板标注中必不可少的内容。
A. 产品型号
B. 材料牌号
C. 弯曲半径
水冷壁、顶棚管、管式空气预热器等平行密集管排一般可用______表示。
A. 点画线
B. 相交中心线
C. 虚线
微信支付 
支付宝支付