我国著名雕塑奉先寺卢那大佛像位于______。( )
A.山西云冈 B.河南洛阳C.甘肃敦煌 D.四川乐山
参考答案:B
I was halfway back to the hospital where the doctor was working Susan caught up with me.
A.when
B.while
C.until
D.though
各级重大危险源应达到的受控标准是:一级危险源在( )级以上;二级危险源在( )级以上;三级和四级危险源在( )级以上。
A.A,A,A
B.A,B,B
C.A,B,C
D.B,B,C