作为教学活动的基本依据,教材的基本属性是它的传播性和实用性。
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耙斗装岩机作业检查时从外向里,依次检查靠近工作面的支护及窝头空顶距。
A. 正确
B. 错误
Joan is () sister.
A. Mary and Jack
B. Mary’s and Jack’s
C. Mary’s and Jack
D. Mary and Jack&rsquo
—Do you think the exam will be put off? --()
A. Not good news
B. The exam is difficult
C. Not likely
D. It was put off yesterday
对不合格项进行再次检测,其抽检数量应与上次检测时相同。
A. 正确
B. 错误