问题
单项选择题
水泥浆液是重要的注浆材料，它具有如下优点（）。
A.结石体强度高、透水性低
B.可注性好
C.稳定性较好
D.凝固时间短
答案
参考答案：A
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水泥浆液是重要的注浆材料，它具有如下优点（）。
A.结石体强度高、透水性低
B.可注性好
C.稳定性较好
D.凝固时间短
参考答案：A
Look! This is my room. It has a big window. My bed is near 16 . Next to the bed there is17 .My books are 18 the desk. My pens, rulers and other 19 things are in my school bag. The bag is 20 the door. In the morning, I clean 21 and put everything in good order. Can you see the cat under the chair? 22 my cat Mimi. I have a bird Polly, but you 23 it in this room. It’s a Chinese cat. It’s in my24 . The cat and the bird can’t live 25 room, you know.
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