第10题: [多项选择]石子颗粒级配试验结果计算与评定表达对的为（） A. 计算分计筛余百分率：各筛号的筛余量与试样的总质量之比精确至0.1%。 B. 计算分计筛余百分率：筛分后，如每号筛的筛余量与筛底的筛余量之和同原质量之差超过1%时，应重新试验。 C. 根据各号筛的累计筛余百分率，采用修约值比较法评定该试样的颗粒级配。 D. 其最小称量值为10kg精确至1% 参考答案:A, B, C
第18题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Stop at the grocery store. B. Use them in his office. C. Take them with him for lunch. D. Borrow them from his neighbor. 参考答案:A 答案解析:[听力原文]
W:I ran out of both salt and pepper.
M: I’ll pick them up on my way home from work.
Q: Wha
