运行时间系数

如果具有可溯源性或已建立准确度和精密度的必备的比较方法可获得，应根据（）来检验准确度

A.相关试验

B.方法比较试验

C.干扰试验

D.回收试验

E.放散试验

车轴齿轮箱是用滚动轴承支承在车轴上，车轮转动时，由于受轮对牵引力的反扭矩作用，齿轮箱有向下转动的趋势，因此，车轴齿轮箱必须用（）来支撑，使它不能转动。

阅读理解。

     Just getting accepted to an American college or university does not guarantee that you will get a visa.

And getting a visa just lets you arrive in the United States. It does not guarantee that an immigration officer

will permit you to enter the country.

     If you are requesting a visa for the first time, you will probably have to go to an American embassy or

consulate (领事馆). You will need to bring a government form sent to you by your American school that

shows you have been accepted.

     You will also need banking and tax records that show you have enough money to pay for your education.

And be prepared to provide evidence that you will return to your home country after your studies end.

     All of this is important in satisfying the requirements to get a visa. A consular official will also take your

picture and your fingerprints.

     Foreign students must contact their local embassy or consulate to request an interview and to get other

information. This includes directions about how and where to pay the visa application charge. The cost is

two hundred dollars.

     You should apply for the visa as soon as you have been accepted to a school in the United States. The

government needs time to perform a background investigation.

     You cannot receive a visa more than one hundred twenty days before the start of your program. And if

you are coming as a student for the first time, you cannot enter the country more than thirty days before

classes begin.

      Once you come to the United States, you can stay for the length of your period of study. Your school

is required to provide the Department of Homeland Security with reports on your status as a student.

1. What do you have to take to the American embassy if you request a visa for the first time?

A. A government form.

B. Banking and tax records.

C. Pictures and fingerprints.

D. Both A and B.

2. When should you apply for a visa?

A. The moment you have been accepted to a school in the US.

B. One hundred twenty days before you go to the US.

C. Thirty days before classes begin.

D. After the immigration officer permit you to enter the US.

3. How much will you be charged for the visa application?

A. Free of charge.

B. Two hundred dollars.

C. One hundred twenty dollars.

D. Thirty dollars.

4. What may be the main idea of this passage?

A. When to get a visa.

B. Some tips on how to get a visa.

C. How to enter the US.

D. Ways to be accepted by American universities.

以下哪条经脉“贯脊”（）

A.督脉

B.带脉

C.足少阴肾经

D.足太阳膀胱经

E.足少阳胆经

对职业道德所做的规定属于岗位劳动规则中的（）

A.岗位规则

B.组织规则

C.时间规则

D.协作规则