皮皮学，免费搜题
登录
搜题
【单选题】
肺通气的原动力来自A.
肺的舒缩运动
B.
肺的弹性回缩
C.
呼吸肌的舒缩
D.
胸内负压的周期性变化
E.
肺内压与大气压之差
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
【单选题】The argument against Bowlby's conclusion shows that ______.
A.
there is on negative delayed effect on infants who go to school before three
B.
there is long-term effect on infants who go to school before three
C.
children who are sent to school before three are subject to mental illness
D.
children have problems with day care
【简答题】?Read the text below about communicating in groups. ?In most of the lines 41—52 there is one extra word. It is either grammatically incorrect or does not fit in with the meaning of the text. Some line...
【单选题】--Is there uniform on the sofa? --No, there is on the desk.
A.
a, an
B.
an, a
C.
a, one
D.
an, one
【简答题】•Read the text below about leadership. •In most of the lines 34-45, there is one extra word. It is either grammatically incorrect or does not fit in with the meaning of the text. Some lines, however, ...
相关题目：