以下哪一项是SLE病人病情稳定后不宜参加的活动
A.太极拳
B.家务劳动
C.日光浴
D.轻体力劳动
E.听轻音乐
参考答案:C
—What are those?
—_______ . [ ]
A. These are cars
B. Yes, they are
C. They are buses
D. No, they are cars
抗压强度值为48.0MPa的砼立方体试件抗压试验时,加荷持续时间应为()秒。
A、96~160
B、60~96
C、48~60
D、32~48