下列哪项不属于免疫抑制剂（）。A.烷化剂 B.抗代谢药 C.环孢菌_爱下问搜题

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问题单项选择题

下列哪项不属于免疫抑制剂（）。

A.烷化剂

B.抗代谢药

C.环孢菌素A

D.FK-506

E.胸腺素

答案

参考答案：E

解析：本题考核学生对免疫抑制剂的认识。免疫抑制剂有合成药物：烷化剂和抗代谢药物；激素制剂：主要是糖皮质激素；微生物制剂：环孢素A、FK—506等；生物制剂：γ球蛋白制剂，免疫脂质体；中草药：雷公藤等。胸腺素则是免疫增强剂的一种。

完形填空

Some years ago I was offered a writing assignment that would require three months of travel through Europe. I had been __36__ a couple of times, but I could hardly __37__ to know my ways around the continent. __38__, my knowledge of foreign languages was __39__ to a little college French.
I __40__. How would I, unable to speak the language, __41__ familiar with local geography or transportation systems, conduct interviews and do __42__? It seemed impossible, and with considerable __43__ I sat down to write a letter rejecting the __44__. Halfway through, a __45__ ran through my mind: you can’t learn if you don’t try. So I __46__ the assignment.
There were some bad __47__. But by the time I had finished the trip, I was an experienced traveler. And ever since, I have never hesitated to head for even the most __48__ places, without guides or __49__ advanced bookings, confident that somehow I will __50__.
The point is that the new, the different, is almost by definition __51__. But each time you try something, you learn, and as the learning _52_, the world opens to you.
I’ve learned to ski at 40, and flown up the Rhine River in a (n) __53__. And I know I’ll go on doing such things. It’s not because I’m braver or more daring than others. I’m not. But I’ll accept worry as another name for _54_and I believe I can 55_ wonders.

B．experiments

D．disappointment

A．accomplished

D．experiences

C．interesting

A．astonishing

B．frightening

C．fascinating

B．opportunity

填空题

国家基本气象站，是根据（）所设置的气象观测站，大多担负（）或（）任务，是国家天气气候站网中的（）。