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【简答题】
Fill in the blanks with the words and expressions given below. Change the forms where necessary. 1) A good student must _______ what he reads ____ what he sees around him. 2) I hope that this sum of money will _____ us to buy a car. 3) I cannot remember when I stopped _____________ with him. I haven’t heard from him for a long time. 4) ____________ visit her grandmother, the little girl saw many interesting things. 5) We can become more ________ by reading. 6) Our grandfathers certainly couldn’t have ________ in their youth what we are doing today with the help of modern technology. 7) Eye problems are less _______ among the young students of this country. 8) Isn’t it _______ that we can talk with and even see our friends thousands of miles away? 9) He had changed so much that even his wife didn’t ________ him. 10) Mr. Smith worked very hard when he was young, but lived in great _____ when he was old. 11) Words cannot _______ the beauty of the mountain we visited last week. 12) My father has been to many countries, _______ France, Germany and Japan. 13) Many people find it difficult to think what their life would be like without the ______. 14) The result is very ______ from what we at first expected. 15) Magellan __________ one of the greatest explorers(探险家) in history.
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举一反三
【单选题】甘氨酸的 pK-COOH=2.34,pK-NH 2 = 9.60,其PI为
A.
11.94
B.
7.26
C.
5.97
D.
3.63
E.
2.34
【单选题】中印两国争议地段不包括()。
A.
北段
B.
东段
C.
中段
D.
西段
【单选题】构成血-胸腺屏障的血管周隙内常有
A.
成纤维细胞
B.
胸腺细胞
C.
白细胞
D.
巨噬细胞
E.
以上都不对
【单选题】甘氨酸的pK -COOH =2.34,pK -NH 2 =9.6,它的pI为(    )。
A.
11.94    
B.
7.26    
C.
5.97    
D.
3.63
【单选题】构成血-胸腺屏障的血管周隙内常有
A.
成纤维细胞
B.
巨噬细胞
C.
胸腺细胞
D.
浆细胞
【单选题】甘氨酸的 pK -COOH =2.34 , pK -NH 2 =9.60 ,故它的 pI 为:
A.
7.26
B.
5.97
C.
3.63
【单选题】甘氨酸的Pk-cooH==2.34,pK-NH2=9.60,故它pI为( )
A.
11.94
B.
7.26
C.
5.97
D.
3.63
E.
2.34
【单选题】标签工作频率是2.45HZ()
A.
低频电子标签
B.
高频电子标签
C.
特高频电子标签
D.
微波标签
【单选题】构成血-胸腺屏障的血管周隙内常有
A.
成纤维细胞
B.
中性粒细胞
C.
嗜酸性粒细胞
D.
施万细胞
E.
巨噬细胞
【单选题】构成血-胸腺屏障的血管周隙内常有
A.
成纤维细胞
B.
胸腺细胞
C.
白细胞
D.
巨噬细胞
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