Ex.9-2 Listen to the following short dialogues and choose the appropriate answers.
A. Going to work.
B. Cleaning the floor.
C. Doing the dishes.
D. Washing clothes.
查看答案
Ex.9-3 Listen to the following short dialogues and choose the appropriate answers.
A. The robot has a man-made brain.
B. Robots help humans get smarter.
C. The human brain becomes smarter.
D. Robots can be smarter than humans.
Ex.9-4Listentothefollowingshortdialoguesandchoosetheappropriateanswers.
A. The development of science.
B. The importance of learning.
C. The size of a robot.
D. The power of IoT.
Ex.9-5 Listentothefollowingshortdialoguesandchoosetheappropriateanswers.
A. It is a physical planet(星球).
B. It is full of wonders(奇观).
C. It’s becoming a big information system.
D. It’s becoming smaller and smaller.
为了保证斜截面抗弯能力，必须使弯起钢筋的（）。
A. 起弯点离开其充分利用点不小于0.5h0
B. 起弯点里开启充分利用点不小于0.5h
C. 起弯点里开启充分利用点不小h0
D. 起弯点里开启充分利用点不小h
微信支付 
支付宝支付