秕糠bǐ künɡ
参考答案：
秕：子实不饱满；糠：稻、麦、谷子等的子实所脱落的壳或皮。意思为秕子和糠，比喻没有价值的东西。
She treated the boy very well _____he were her own child. [ ]
A. as though
B. unless
C. even though
D. as long as
玻璃钢管道施工、试压时，通常强度检验压力为工作压力的（）倍。
A、1
B、1.25
C、1.5
D、1.75
