She hesitated for ________ a second before responding. A: a sanction of B: a traction of C: a fraction of D: a function of

Despite all the fretting about climate change, the world is not going to disappear an time noon; in fact, environmental activism seems to be gaining traction. A: industry B: power C: charm D: weight

anti-lock braking system_____ electronic brakeforce distribution____ traction control system_____ emergency brake assist____ electronic stability control____ wheel speed sensor____

下列表示汽车轮胎所能承受的最大充气气压的是（）。 A: MAXPRESS B: TEMPERATURE C: TRACTION D: KPNX

下列表示汽车轮胎所能承受的最大充气气压的是（）。 A: MA B: PRESS C: TEMPERATURE D: TRACTION E: KPNX

What is NOT the duties will a technician perform? A: Maintaining the jumper cables. B: Inspecting traction motors. C: Checking the train's power supply for efficiency. D: Starting the locomotives.

下列四驱技术所对应的品牌正确的是（） A: 大众4Motion B: 宝马4MATIC C: 雷克萨斯Instant Traction™ D: 奔驰x-drive

The main factors which affect the pressure wave when two high-speed trains meet: A: The speed of the meeting trains B: The streamline degree of train C: Line spacing D: Train marshalling form E: Train power distribution form F: Train traction power supply mode

Fartlek training method, also known as speed game training method, refers to the training method in which athletes change their（）at will for a long time A: Land drills, wheel t and traction training B: speed, content and environment C: Strength training, land drills and endurance training D: Training methods for jumping movements, speed endurance and environment