问题
单项选择题
下列关于型砂透气性的说法错误的是（）。
A.粒度越粗透气性越好
B.水加入量越多，透气性越好
C.粘土越多，透气性越差
D.紧实度越差，透气性越差
答案
参考答案：B
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下列关于型砂透气性的说法错误的是（）。
A.粒度越粗透气性越好
B.水加入量越多，透气性越好
C.粘土越多，透气性越差
D.紧实度越差，透气性越差
参考答案：B
| 选择方框内合适的词，并用其适当形式填空。 | |
2. In Britain, people not only use ______ to cut things, but also use them to have meals. 3. — Bob, have you _____ up your things on the floor? — Not yet, Mum. I am still busy with my homework. 4. On weekends, the supermarkets are usually ______ with people. 5. — Excuse me, would you tell me where I can buy some shampoo? — Sure. ______ the post office, there's a small supermarket. |