A.2:25
B.25:2
C.2:1
D.1:2
答案:C
根据短文意思回答问题。
A: What's that over there?
B: Where?
A: Over there, on the hill.
B: It's a car.
A: What colour is it?
B: It's red. It's a red car.
A: Whose car is it? Do you know?
B: It's Jim's car. It's his car.
A: Oh, I see. It's very nice.
B: Yes, it is.
Questions :
(1) What's that?
(2) Where's the car?
(3) What colour is it?
(4) Whose car is it?
(5) Is this car very nice?
冲压中、小型件时,用于取料和放料的常用工具是()等。
A.电磁吸盘
B.钢丝钳
C.气动夹钳
D.真空吸盘