问题
单项选择题
胚胎第6周后主要造血器官是( )
A．骨髓
B．胸腺
C．脾
D．中胚叶
E．肝
答案
参考答案：E
解析：[解释点评] 胚胎第6周后主要造血器官是肝。 (2004年考试真题)
搜题请搜索小程序“爱下问搜题”
胚胎第6周后主要造血器官是( )
A．骨髓
B．胸腺
C．脾
D．中胚叶
E．肝
参考答案：E
解析：[解释点评] 胚胎第6周后主要造血器官是肝。 (2004年考试真题)
When I was 18 years old, one morning, my father told me to drive him into a town, about 40 miles away. I had just learned to 36，so I agreed with pleasure. When we came to the town, something was wrong with the car. Then I took the car to a nearby garage to have it 37 and promised to  pick Dad up at 4 pm. Because I had a few hours to spend, I decided to go to the 38 .However I became 39 interested in the film that I forgot the time. When the last film finished, it was 6 o’clock. I was afraid Dad would be 40 and never let me drive again, so I drove back quickly to meet Dad and made an excuse(借口) 41 my being late. I’ll never forget the cry he gave me: “I’m disappointed that I feel you have to tell a lie to me, Jack. I’m angry, not with 42 but with myself. I have failed 43 I’ve brought up a son who can not even tell the truth to his own father. I’m going to walk home now and think seriously about 44 I have done wrong all these years.” Dad began 45 along the road. I begged(乞求)all the way, telling him how I drove behind him for 40 miles, at a speed of 5 miles an hour. It was the most unforgettable lesson. I have never told a lie to him ever since.
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