车辆下长坡时要减挡行驶,以充分利用发动机的制动作用。
参考答案:对
根据句意及汉语或首字母提示,填写恰当的单词。
1. The old couple lived in a house made of ________( 木头).
2. The lights went out, so we had to ________( 点燃) a candle.
3. The dog barked when he heard the ________( 脚步) in the garden.
4. We visited parts of Fujian Province in s________ China.
5. The moon a quite big and round tonight.
制动软管.制动器室膜片破裂只是气压正常,但气压制动系制动失效的原因。