为了不影响特大型、大型国有煤矿企业的生产经营资金周转,当企业风险抵押金累计达到( )万元时不再存储。
A.600 B.700C.800 D.900
参考答案:A
As I looked at the memorial,I thought about ________ terrible disaster it was for the people in Nanjing then and ________ they were to fight the Japanese invaders.
A.how;how
B.what a;how
C.what;what
D.how;what
在生产中,打开任一安全门,机器将恢复()步骤
A、烘干
B、排气
C、零位