我国规定采用SI制(国际单位制),工程上的压力单位用帕斯卡(简称帕)或兆帕。1帕等于()。
A.1牛顿/m2
B.760mmHg
参考答案:A
用and, but 或or 完成句子。
1. Would you like some coffee _____ tea?
2. His father is tall _____ his mother is short.
3. Let's go _____ play basketball.
4. Maria likes thrillers, _____ she doesn't like cartoons.
5. He often helps me _____ I often help him.
影响总图运输方案设计的生产因素包括()。
A.交通运输——厂内外道路的连接,厂外铁路接轨点及走向
B.废渣排放的位置、运距和采用的运输方式
C.物流量(原材料、半成品、成品)及物流线路分析
D.原、辅材料来源和产品销售方向及运输方式