This passage is intended for someone who ______. [br] To see whether there is le

游客2024-07-07  14

问题 This passage is intended for someone who ______. [br] To see whether there is leak of air, you should first ______.

选项 A、pump some air into the tube
B、replace the tyre
C、examine the valve
D、check the wheel

答案 C

解析
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