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【单选题】
肺与外界环境之间的气体交换以及肺泡与肺血管之间的气体交换称为（）A.
呼吸
B.
外呼吸
C.
肺通气
D.
内呼吸
E.
肺换气
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举一反三
【单选题】In which of the flollowing groups is the discovery of new species not mentioned in the passage?
A.
Birds
B.
Monkeys
C.
Trees.
D.
Freshwater fish.
【单选题】In terms of species, which of the following biologist holds that species are immutable ?
A.
Carl von Linné
B.
Jean-Baptiste Lamarck
C.
Charles Robert Darwin
D.
Theodosius Grygorovych Dobzhansky
【简答题】革兰氏阳性菌细胞壁的主要成分为______和______，而革兰氏阴性菌细胞壁的主要成分则是______、______、______和______。
【多选题】In most cases, the aim of genetic engineering is to introduce a new trait to the plant which does not occur naturally in the species, which include:
A.
resistance to certain pests, diseases, or environmental conditions
B.
reduction of spoilage
C.
resistance to chemical treatments (e.g. resistance to a herbicide)
D.
improving the nutrient profile of the crop
【单选题】把家庭作为社区护理的基本单位的最主要原因是
A.
每一个家庭成员是独立的个体
B.
每一家庭成员的健康问题具有个别性
C.
容易制定社区护理的目标
D.
家庭是提高社区健康水平的基础
【单选题】Among the following species, which one was introduced to Japan in the Tang Dynasty?
A.
Tangerine.
B.
Watermelon.
C.
Walnut.
D.
Tomato.
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