4._____self-driving cars are coming, the concept of driving will change dramatically.
A) Now that
B) Even though
C) In case
D) As if adt
查看答案
5.Students____careers in international business can turn to us for help.
A) pursuing
B) pursued
C) pursue
D) have pursued
直径相同、材料不同的两根等长实心轴,在相同外力偶矩作用下,最大切应力____,扭转角____。(填“相同”或“不同”)
关于沥青混合料压实的说法错误的是()。
A. 碾压顺纵向由低边向高边、按规定要求的碾压速度均匀进行
B. 相邻碾压重叠宽度大于30cm
C. 压路机不准停留在温度尚未冷却至自然气温以下的已完成的路面上
D. 碾压进行中压路机可以中途停留、转向或制动
微信支付 
支付宝支付