皮皮学，免费搜题
登录
搜题
【单选题】
肺通气的原动力来自( )A.
肺内压和胸膜腔内压之差
B.
肺的扩大和缩小
C.
胸廓的扩大和缩小
D.
呼吸肌的收缩和舒张
E.
胸膜腔内压的周期性变化
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】When you get in your car, you reach for it. When you're at work, you take a break to have a moment alone with it. When you get into a lift, you play with it. Cigarette? Cup of coffee? No, it's the thi...
【单选题】Which is the biggest island of China?
A.
Taiwan Island.
B.
Hainan Island.
C.
Diaoyu Island.
D.
Huangyan Island.
【单选题】The largest island in China is _____ .
A.
Qing Island
B.
Hainan Island
C.
Changing Island
D.
Taiwan Island
【单选题】Diaoyu Island(岛) lies _____the northeast of China and Taiwan Island is ____the southeast of China. They are both parts of China.
A.
in; on
B.
on; in
C.
in; in
【简答题】Until the new gym is built, you have no option but to ____existing buildings which may or may not suit your immediate requirements. (close up, break in, look back on, make the best of)
【单选题】— Please sit down and have a break. You have been working on this machine nonstop for two hours. — No, thanks. _____. [ ]
A.
I'm not in the least tired C. I'm not a little tired
B.
I'm too tired to move D. I'm a bit tired
【单选题】---Please sit down and have a break. You have been working for three hours. ---No, thank you. _____.
A.
I am not a little tired
B.
I am not in the least tired
C.
You go ahead please
D.
I’ll stop and rest together with you
【单选题】Taiwan is ___ island, it is ___ largest island of China.
A.
an… the
B.
an…a
C.
the…the
D.
the…a
相关题目：