[单项选择]下列关于软膏剂质量要求的叙述，错误的是
A. 软膏剂应均匀、细腻，涂于皮肤无刺激性
B. 用于创面的软膏剂均应无菌
C. 软膏剂不得加任何防腐剂或抗氧剂
D. 应具有适当的黏稠性，易于涂布
E. 软膏剂应无酸败、异臭、变色等现象

影响疲劳的工作环境因素有：（）
Ⅰ、噪音高Ⅱ、振动大Ⅲ、船舶摇摆剧烈

If the 20th century has been the American century, then there are plenty of people saying watch this space: the twenty first century will be different. The distinguishing characteristic of the post-cold-war world is that there is only one super power. 41) _______________.
The military muscle-flexing we have seen from China over the last few years could be an indication of how things are likely to go, although it has to be said that to many people’s surprise the Chinese have been quite constructive over East Timor. But I think we must assume that the main struggle in the 21st century will be with China, already the world’s largest nation. Happily, the Chinese seem to have no global pretensions. One can’t see them interfering in some far-distant conflict, and in both military and economic terms they are still light years behind America.
42) _______________.
Europe is already the largest trading block in the world, 43) _______________. . It&

A.脑电图检查

B.CT

C.CT或磁共振检查

D.脑血管造影

E.肌肉活组织检查