问题
单项选择题
黏土砂浆或白灰砂浆隔离层，采用这两种低强度砂浆的隔离作用比较好，黏土砂浆混合比为石灰膏：砂：黏土=（）；白灰砂浆配合比为石灰膏：砂=1：4.。
A、1：2：3
B、1：2.4：3
C、1：2.5：3
D、1：2.4：3.6
答案
参考答案：D
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黏土砂浆或白灰砂浆隔离层，采用这两种低强度砂浆的隔离作用比较好，黏土砂浆混合比为石灰膏：砂：黏土=（）；白灰砂浆配合比为石灰膏：砂=1：4.。
A、1：2：3
B、1：2.4：3
C、1：2.5：3
D、1：2.4：3.6
参考答案：D
| 完形填空。 | ||||
| Sometimes your biggest weakness can become your biggest strength, which is seen to happen in our life. A boy, who had lost his left arm in a car crash, began his lessons with an old Japanese Judo master (柔道 大师). But after three months of hard 1 , the old master had 2 him only one move. To know why, the boy finally asked, "Should I be good enough to learn some more moves besides this one only?" "But this is the only one you'll ever need to 3 ," was the teacher's reply. Not quite understanding but believing in his teacher, the boy kept practicing. Several months later, the Japanese master took the boy to his 4 competition. Surprising himself, the boy easily won his first two matches. The third match seemed to be more difficult, 5 after some time, his opponent (对手) became nervous and worried. The boy again used his one move to win the match, which had him in the finals just as easily. Now his opponent was more 6 . For a while the boy seemed 7 . The judge was about to stop the match for fear that he might get hurt. "No," the teacher 8 firmly (坚定地). The match went on. Just at this moment, his opponent made a deadly 9 . He dropped his guard (防守), at which the boy gave him a sudden turnover: the boy was the final winner. On the way home he was told 10 he could win: the only one known defense (防卫) for that most difficult move in Judo was for his opponent to take hold of his left arm. | ||||
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