PART 3 ·What inventions do you think are greatest in Chinese history
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According to the passage, the present tense in English is （）
A. not used to express a desire to do something in the immediate future
B. used with some verbs but not with others to express future intention
C. basically the same in English as it is in Spanish
D. not the most difficult problem for foreign students
According to the passage, language learners can reduce the number of their mistakes by （）
A. asking native speakers for explanations
B. reading good books in the foreign language
C. comparing their speech with that of native speakers
D. speaking without regard to native speakers
A. enoughB. touchC. roughD. cough
A．氧分压 B．氧含量 C．氧容量 D．氧和Hb的亲和力 E．氧饱和度
A. 测定肺通气功能的较好指标是
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