Questions 5 to 7 will be based on the following news item. Question 5 A: The rocket booster delivers the payload into space. B: The rocket booster burns up on its way back to Earth. C: The rocket booster separates and flips in space. D: The rocket booster comes back to Earth.

EC3采用N-booster:3级高效能量回收，可把97%制动动能回收电能储存（）

EC3采用N-booster:3级高效能量回收，可把制动动能回收电能储存（） A: 0.95 B: 0.94 C: 0.97 D: 0.96

Typical braking system has the following basic parts: brake pedal, brake booster, master cylinder, brake lines and brake fluidas shown in Fig.5-8．

Brake booster mounted on the firewall between the brake pedal and master cylinder increases the force applied to the pistons in the master cylinder so that the car can stop with less effort．

From the daily service tank,the fuel is pumped to a heater by . A: the transfer pump B: the high pressure pump C: the low pressure fuel pump (or booster ump) D: the separato

下列选项中表示制动防抱死系统的是哪一项？ A: wheel speed sensor B: vacuum booster C: hydraulic modulator D: Anti-lock braking system

Between the brake pedal and the master cylinder is the （ ） which increases the brake force to make the car slow down or stop with less effort. A: brake booster B: brake caliper C: brake drum D: wheel cylinder

下列关系正确的为（）。 A: u（n）=\n（n）\n B: u（n）=\n（n）\n C: u（n）=\n（n）\n D: u（n）=\n（n）

n+n*n+n*n*n+n*n*n*n+n*n*n*n*n=?