问题
单项选择题
工程建设国家标准、行业标准均可分为()和推荐性标准。
A.一般性标准
B.特殊性标准
C.建议性标准
D.强制性标准
答案
参考答案：D
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工程建设国家标准、行业标准均可分为()和推荐性标准。
A.一般性标准
B.特殊性标准
C.建议性标准
D.强制性标准
参考答案：D
| 完形填空。 | |||
| One morning, a crow (乌鸦) sits __1__ an apple tree. There __2__ some meat in her mouth. She wants to give it to __3__. __4__ old fox looks for (寻找) his food. He __5__ the crow and the meat. He wants to get the __6__. So he says to the crow, "Good morning, Mrs. Crow. __7__ are you?" But the crow doesn't say a word. So the fox says to the crow again, "You are nice.Your clothes (衣服) are nice, too. I like your songs __8__. Please sing a song for __9__." Mrs. Crow is very happy. So she opens her mouth and sings. The meat drops down (掉下) into __10__ mouth. | |||
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