抗震设防烈度应按国家规定的有权审批机关颁发的文件确定,一般可采用( )。
A.抗震烈度
B.基本烈度
C.设防烈度
D.安全烈度
参考答案:B
She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of_________ she may be in.
A.mood
B.mind
C.form
D.thought
某些有毒饮片可经过先煎1-2小时,如()。
A、炙麻黄
B、人参
C、制川乌
D、砂仁