单项选择题

When determining the date of shipment, "on or about June 11th" refer to ( ). A.
June 6~17 B.
June 6~16 C.
June 7~17 D.
June 7~16

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单项选择题

变形缝泛水处的防水层下应增设附加层,附加层在平面和立面的宽度不应小于( )mm. A.
200 B.
250 C.
350 D.
500;

深入不毛什么意思？深入不毛怎么读？

答案：参考答案：
拼音：shēn rù bù máo，简拼：srbm
成语解释：不毛：指不生长庄稼的贫瘠土地...