便血最常见的病因是A．局部血管损伤 B．感染性疾病 C．先天性畸形 D．血液病 E．

若兼痞满便秘应

A．改用大承气汤

B．改用小承气汤

C．合用小承气汤

D．加火麻仁、郁李仁

E．以上均可

阅读理解。

     In America, drivers' education is part of the regular high school curriculum (课程). Every student in his

or her second year of high school is required to take a class in driver's education. However, unlike other

courses, it is not given during the regular school year. Instead it is a summer course.

     The course is divided up into two parts: class time for learning laws and regulations, and driving time to

practise driving. Class time is not unlike any other class. The students study the basic traffic laws from a text

to pass the written driving test that is given to anyone who wants to get a driver's license.

     Driving time is a chance for the students to get behind the wheel (steering wheel) and practise starting

steering, backing up, parking, switching lanes, turning corners, and all the other maneuvers (操作) required

to drive a car. Each student is required to drive a total of six hours. The students are divided up into groups

of four. The students and the instructor go out driving for two hour blocks of time. Thus, each student gets

half an hour driving time per outing. The instructor and "driver" sit in the front seats and the other three

students sit in the back.

     After the student has passed the driver's education course and reached the appropriate age to drive (this

age differs in every state but in most cases the person must be 16 years old), they can go to a designated (指

定的) state office to take their driver's test, which is made up of an eye examination, a written test, and a

road test. The person must pass all three tests in order to be given a driver's license. If the person did well in

his or her driver's education class, he or she will pass the test with flying colors and get a driver's license.

1. In America, the driver's course mentioned above _____. [ ]

A. is considered as part of the advanced education

B. is given to anyone wanting to get a driver's license

C. is carried on at the same time as other courses

D. is offered to all the students of Grade 2 in high schools

2. We can infer that the students are required to _____ in their whole driving practice. [ ]

A. spend at least six hours driving

B. get half an hour driving

C. drive for two hour blocks of time

D. go out driving for twelve times

3. Which of the following is Not True for the students wanting to get their driver's license?[ ]

A. They must have their eyes examined.

B. They must be 16 years of age.

C. They should go to have their driver's test.

D. They ought to do well in their driver's course.

4. In the last sentence, "with flying colors" means _____.[ ]

A. happily

B. quickly

C. colorfully

D. successfully

实物黄金产品的交接必须在指定的交接地点进行。由调出方人员、调入方人员及监交人员参加。交接双方为黄金企业人员和现金中心管库人员，监交人员为（）.

A.个人业务部门人员

B.会计业务部门人员

C.保卫部门人员

D.公司业务部门人员

跨国公司在决定是否进行国际直接投资时，必须考虑以下成本：出口成本、许可证贸易成本和国际直接投资成本。

简述货币市场及其特点。