做胸外心脏挤压时,对成年人应下陷()cm。
A.3-4
B.4-5
C.2-3
D.4-6
参考答案:B
—I feel stressed in my study from time to time. I don't know what to do.
—_________.[ ]
A. You should keep relaxed.
B. What about keeping your worries to yourself?
C. Why not ask the youth workers for advice?
D. You'd better pay no attention to your study.
“洋商见我工商竟用新法,深中其忌,百忌阻抑,勒价停市。上年(1866年)江浙、湖北等省,缫丝、纺纱各厂无不亏折,有歇业者,有抵押于洋商者。”上述史料说明的主要问题是( )
A.近代民族工业与外国资本主义合作谋发展
B.近代民族工业经营不善,致使亏本
C.民族资产阶级非常软弱
D.近代民族工业从诞生之初就受到外国资本主义排挤、压迫