NsW型手制动机链环直径磨耗后小于()时须更换。
A、φ7mm
B、φ8mm
C、φ9mm
D、φlomm
参考答案:C
—Ann is in hospital.
—Oh, really? I ________ know. I ________ go and visit her.
A.didn't; am going to
B.didn't; will
C.don't; will
D.don't; would
中国广大的东部地区处在季风气候区内,四季分明,降雨量呈明显的季节性,故其灾害性气候也不少,旱灾特重,其次是( )
A.地质灾害等
B.沙尘暴灾害等
C.洪涝灾害等
D.风灾等