HTML文件的开始标记是,结束标记是______。
参考答案:
—Where can I put my shoes?
—You can _____ under the bed.[ ]
A. put it
B. put them
C. to put it
D. to put them
检修后的泵在启动前可用手或其他工具盘动转子,以确证转动灵活,动静部分无卡涩或摩擦现象。()