肽链中的氨基酸不利于形成α-螺旋而利于β-转角的形成的是
A、Pro
B、Ala
C、Val
D、Tyr
E、Leu
A.come to
B.come over
C.come on
D.come through
A.Hardly
B.Almost
C.Never
D.Nearly
1.What time of year was it in this story?()
A、Spring
B、Summer
C、Fall
D、Winter
2.At what time of day did Robin cross the river?()
A、Morning
B、Midday
C、Late afternoon
D、Night
3.Robin was apparently going to town()
A、to buy new clothes
B、for the first time
C、for the first time in several years
D、on one of his regular trips there
4.How did Robin appear as he walked into town()
A、He was cheerful and excited.
B、He was tired
C、He seemed very sad.
D、He seemed frightened by the strange surroundings
5.How far had Robin traveled?()
A、Over thirty miles
B、From Madrid
C、From a nearby town
D、From London
66.The story took place in ____.
A. spring
B. summer
C. fall
D. winter
67. The boatman was willing to take Robin across the river because___.
A. he wanted to make extra money
B. he saw that Robin was young and rich
C. he was going to row across the river anyway
D. he felt sorry for him because Robin looked poor
68. The stockings that Robin wore were obviously _____.
A. worn-out
B. very expensive
C. handmade
D. much too big
69. From the way he looked,it was evident that Robin was ____.
A. a wealthy merchant's son
B. a country boy
C. a soldier
D. a foreigner
70.How did Robin appear as he walked into the town?
A. He was cheerful and excited.
B. He was tired.
C. He seemed very sad.
D. He seemed frightened by the strange surroundings