通气过度
A．肺通气量＞10L/minB．肺通气量3L/minC．500mlD．150mlE．PEF日变异率≥20%
参考答案：A
—This is my sister Ann.
—Is _____ a student?[ ]
A. she
B. he
C. her
D. his
( )是接受受托机构委托，负责保管信托财产账户资金的机构。
A．资金保管机构B．受托机构C．特定目的信托D．贷款服务机构
