革兰氏阳性菌和阴性菌的差异在于细胞壁的构造和成分的不同。

具有散寒止痛，疏肝下气，燥湿，助阳止泻功效的药物是：（）。

A.附子

B.肉桂

C.干姜

D.吴茱萸

E.高良姜

道教把青龙、朱雀、白虎、玄武称为四方之神，其中朱雀所属的方位是（）

A．东方

B．南方　

C．西方

D．北方

Task 5
Directions: There is an article below. After rending it, you should give brief answers to the 5 questions (No. 56 to No. 60) that follow. The answers (in not more than 3 words) should be written after the corresponding numbers on the Answer Sheet.
The market investigation is indispensable to sales promotion. They are as closely related as the lips and teeth. What you produce is for sale on the market. It would be impossible to succeed in selling a product without investigating the market first. In the international market, goods on sale coming from countries and suppliers are always facing fierce competition. Under such circumstances, they will try everything possible to familiarize themselves with the market conditions.
In making investigations, we ought to get information about what similar items the competitors are offering on the market, what prices they are quoting, what features their products have, who are their regular customers, etc.
Then, how can we obtain such information There are many channels we can make use of in doing this sort of work. The commercial counselor’s offices of our embassies stationed abroad can help us in making market investigations. Nowadays, our import and export corporations send their trade groups abroad quite often. One of their purposes is to make market survey on the spot. Certainly, face-to-face talks with foreign businessman are important channels to get market information. The Chinese Export Commodities Fairs and some other fair of similar nature as well as visits of foreign businessman provide us with such opportunity.

What is the role of market investigation in sales promotion It is ______ .

桥跨结构相邻两支座中心之间的距离称为（）

A、标准跨径

B、理论跨径

C、计算跨径

目前儿童Wilms瘤，手术、放疗和化疗综合治疗的5年生存率可达（）.

A.超过60%

B.65%～75%

C.75%～85%

D.超过90%

E.100%