问题 问答题 简答题

何种情况应进行列车制动机的全部试验?

答案

参考答案:

(1)主要列检所对解体列车到达后,编组列车开车前以及无调车作业的中转列车,可施行一次。

(2)区段列检所对始发和有调车作业的中转列车。

(3)列检所对运行途中自动制动机发生故障的到达列车。

(4)旅客列车在客站检修。

(5)电动车组,内燃车组出段前或在返回地点停留后。

(6)不入客技站检修,在车站折返的旅客列车。

(7)站内设有试风装置时,应使用列车试验器试验,连挂机车后只做简略试验。对装有空气弹簧装置的旅客列车应同时检查辅助用风系统的泄漏。

阅读理解

Ways to Burn More Calories

Run through water

Running in water is one of the toughest activities you can perform because the wet stuff is about 12 to 15 times as resistant (具有阻力的) as air. Try your hardest to run and you can burn about 17 calories per minute.

Start fast

Don’t be fooled — slow and steady won’t win the race. A recent study found that after a short warm-up, cyclists who rode hard during the first half of their workouts and then slowed for the second half burned about 10 percent more calories than those who started slow and finished fast.

Take to the sand

Here is some easy-to-remember advice on burning calories: the softer the surface, the more you burn. By walking or running on the beach, you can use up 20 to 50 percent more calories than you do going at the same pace on a hard trail.

Shut up and dance

Here’s the perfect excuse to sign up for that hip-hop dance class you’ve been eager to try. Surprising your body with new activities — dance, a new sport, you name it — forces it to work harder because it’s doing unfamiliar movements and using muscle groups in different ways.

Use your arms

Getting both your upper and lower body involved can provide a big calorie-burning advantage. So if you’re short of time or want to get everything you can out of your usual 45-minute workout, try total-body activities such as rowing ormming. You can evenng your arms as hard as you can while you walk.

小题1: How can water help you burn more calories?

A.By pushing your body.

B.By wetting your clothes and shoes.

C.By forcing you to run faster.

D.By forcing your body to work harder.小题2:What does “it” in Part 4 refer to?

A.Dance.

B.Movement.

C.Body.

D.Muscle.小题3:Which of the following statements is TRUE?

A.One can burn more calories when walking on the sand than on land.

B.One can burn more calories when walking on stones than on earth.

C.One can burn more calories when running in water than on the sand.

D.One can burn more calories when exercising using the upper body than using the lower body.

填空题