()可以起到楼地面的隔声效果。
A、设置弹性垫层
B、采用实心平板
C、采用正置槽形板
D、设置吊顶
参考答案:A, D
Before the Hope Project was carried out in this poor area, children here had no _____ to education.
A.approach
B.access
C.attitude
D.attraction
主动脉瓣关闭不全诱导时最不合适的药物是()
A.芬太尼
B.泮库溴铵
C.依托咪酯
D.咪达唑仑
E.艾司洛尔