成年人的正常血压值为多少毫米汞柱？（）
A.收缩压＜140
B.舒张压＜90
C.收缩压80
D.舒张压100
参考答案：A, B
I believe ________ you have tried your best and ________ you can come to the top of the class.
A．that；/
B．/; /
C．/; that
D．how; that
单层厂房中目前应用较广的为砖柱。( )
