| There was a big pile of bricks on the
top of a tall building and a man had to bring them down to the ground. He had a
long rope which went over a pulley(滑轮) at the roof of the building. The other
end was fastened to a big box. First he pulled the box up to the top of the building, and fastened the end of the rope so that the box could not come down. Then he climbed up the ladder and filled the box with bricks. Next he climbed down the ladder and untied the rope. Unfortunately the box of bricks was heavier than the man, and as a result he was pulled up by the: rope. Half-way up, the box of bricks hit him as it was coming down. When he reached the top, his head hit the pulley. The box of bricks hit the ground and broke. As a result the bricks fell out. The box was then lighter than the man and consequently he began to come dow A. The box fell down and hit the man on the head. B. The box continued to go up. C. The man went up to the top of the building. D. The man fell down and broke his legs. [单项选择]患者，男，75岁。右足发凉、怕冷、沉重，麻木感月余，伴有间歇性跛行，跌阳脉搏动减弱。舌质淡，脉沉细。其中医证型是（）。
A. 脾肾阳虚证 B. 风寒阻络证 C. 血瘀脉络证 D. 寒凝血脉证 E. 热毒蕴结证 [多选题]在Word B0A0的编辑状态，如拖动水平标尺上沿的“首行缩进”滑块操作，则在下列有关其操作结果的叙述中，错误的有____。
A.文档中各段落的首行起始位置都重新确定 B.文档中被选择的各段落首行起始位置都重新确定 C.文档中各行的起始位置都重新确定 D.插入点所在行的起始位置被重新确定 [单选题]《铁路旅客运输安全检查管理办法》规定，对车站区域两端和因铁路运输生产需要无法封闭的专用线通道，应由（ ）设岗值守。
A.车站 B.派出所 C.安监部门 D.工务部门 [判断题]无论岛式/侧式站台，站在列车到达侧站台尾端紧急停车按钮附近接车、发车（曲线站台除外）。
改正：站台头、尾端紧急停车按钮
A.正确 B.错误 [判断题]CO2 气体保护焊主要用于焊接低碳钢及低合金高强钢，也可以用于焊接耐热钢和不锈钢，可进行自动焊及半自动焊。
A.正确 B.错误 [判断题]压缩机和膨胀阀是制冷系统中低压和高压、低温和高温的分界线。( )
A.正确 B.错误 [多选题]1992 -123. “寒从中生”是指
A.寒邪直中三阴 B.阳气虚衰，温煦功能减退 C.恣食生冷，伤及中阳 D.阳不化阴，水湿痰浊壅盛 [单选题](47873)矫直钢轨作业轨温应高于( )。(1.0分)
A.15℃ B.20℃ C.25℃ D.30℃ 我来回答: 提交
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