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【单选题】
关于气血屏障的叙述,错误的是( )A.
是肺内气体交换必须通过的薄膜层
B.
由肺泡壁和毛细血管壁组成
C.
由三层结构组成
D.
又称为呼吸膜
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举一反三
【判断题】The difference of sinology and Chinese Studies is that sinology is about Chinese economy and Chinese studies is the research on Chinese culture.
A.
正确
B.
错误
【判断题】Sinology and National Studies are different because sinology is the study of China by Chinese and National Studies is the study by foreign scholars.
A.
正确
B.
错误
【判断题】⑶In Sinology schools, students receive systematic training in sinology. They would also learn math and English lessons.
A.
正确
B.
错误
【单选题】A solution contains 15 g Na 2 CO 3 and 235 g of H 2 O? What is the mass % of the solution?
A.
15% Na 2 CO 3
B.
6.4% Na 2 CO 3
C.
6.0% Na 2 CO 3
D.
5.0% Na 2 CO 3
【简答题】阅读理解 The human brain contains 10 thousand million cells and each of these may have a thousand connections. Such enormous numbers used to discourage us and ease us to dismiss the possibility of ...
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