设备及管道安装后,其水压试验、气压试验和气密性试验均属于( )。
A.强度试验 B.密封性能试验 C.结构性试验 D.致密性试验
参考答案:D
______ along with host families, I believe, language travel students are likely to get enough
language practice.
A.Stay
B.Having stayed
C.Staying
D.To stay
健康干预的方法中,下列哪项不属于行为干预的范畴()
A.模拟
B.示范
C.电视传播
D.脱敏法
E.强化法