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问题 单项选择题

列给出的血气分析中哪一项是Ⅰ型呼吸衰竭（）。

A.PaO260mmHg，PaCO258mmHg

B.PaO240mmHg，FACO247mmHg

C.PaO255mmHg，PaCO266mmHg

D.PaO240mmHg，PaCO280mmHg

E.PaCO250mmHg，PaCO260mmHg

答案

参考答案：B

选择题

Although the used car seems in good _____, it cannot run too fast.

                                                                                                                                                        [ ]

A. state

B. situation

C. condition

D. occasion

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判断题

生产负荷提高时，PTA浆料摩尔应降低。（）
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