题目内容
容量分析中实验用的仪器是分析天平和50毫升滴定管，某学生将称样和滴定的数据记为0.25g和24.1mL，正确的记录应为 g和 mL。
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梁在横向力作用下发生平面弯曲时,横截面上 。
对于等直梁,在以下情况中, 是错误的。
Group 1:1. ______ results show that the vaccine is effective, but this has to be confirmed by further medical trials.2. Could you ______ one or two points about how to use this new computer program for me?3. The accident ______ a tight link between the two families.4. We ______ to the view that things are either totally good or totally bad.5. I wish my son would show more ______ and go out and seek a good job.A. clarify B. Preliminary C.incline D. initiative E. forged
Group 2:1.The police______that whoever killed him was with him earlier that day.2.I cannot afford to leave the land lying______.3.A further addition to your paymay be given in the form of ______.4.I try to ______ at a party and not just stay with the friends I came with.5.There is a ______ link between smoking and some types of cancer.A. idleB. reckonC. circulateD. bonusE. definite
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