搜题请搜索小程序“爱下问搜题”
问题 单项选择题 A1/A2型题

用阿片类药物治疗慢性中、重度癌痛时病人出现“成瘾”可能性有（）

A.<1%

B.5%

C.10%

D.50%

E.100%

答案

参考答案：A

解析：新近研究表明，阿片类药物治疗癌痛成瘾病例极为罕见。

单项选择题

Research on animal intelligence always makes me wonder just how smart humans are. (51) the fruit-fly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly (52) to live shorter lives. This suggests that (53) bulbs burn longer, that there is an advantage in not being too terrifically bright.

Intelligence, it (54) , is a high-priced option. It takes more upkeep, burns more fuel and is slow off the starting line because it depends on learning—a (55) process—instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (56) .

Is there an adaptive value to (57) intelligence That’s the question behind this new research. I like it. Instead of casting a wistful glance (58) at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real (59) of our own intelligence might be. This is on the mind of every animal I’ve ever met.

Research on animal intelligence also makes me wonder what experiments animals would (60) on humans if they had the chance.

55().

A.incredible 

B.spontaneous 

C.inevitable 

D.gradual
查看答案
多项选择题

网银包括以下功能（）

A、登记理财投资的账户

B、购买

C、赎回

D、查询
查看答案