【单选题】【消耗次数:1】
儿童9个月时脑重660克,达到成人的( )。
50%
100%
90%
75%
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相关题目
【单选题】 儿童12岁时脑重约1400克,达到成人的( )。
①  50%
②  75%
③  90%
④  平均脑重
【单选题】 儿童6、7岁时脑重约1280克,达到成人的( )。
①  90%
②  100%
③  75%
④  50%
【单选题】 儿童2.5岁-3岁时脑重约900-1011克,达到成人的( )。
①  100%
②  75%
③  90%
④  50%
【单选题】 儿童脑重基本达到成人水平的年龄是( )。
①  3岁
②  6岁
③  9岁
④  12岁
【单选题】 儿童脑重基本达到成人水平的年龄是( )。
①  3岁
②  6岁
③  9岁
④  12岁
【单选题】 儿童脑重基本达到成人水平的年龄是?
①  3岁
②  6岁
③  9岁
④  12岁
【单选题】 两岁时,儿童脑重已占成人脑重的()。
①  50%
②  65%
③  75%
④  95%
【单选题】 两岁时,儿童脑重已占成人脑重的()。
①  50%
②  65%
③  75%
④  95%
【判断题】 六七岁的儿童的脑重已基本接近成人的脑重。
①  正确
②  错误
【单选题】 胎儿出生时,脑重相当于成人脑重的( )。
①  10%
②  15%
③  20%
④  25%
随机题目
【单选题】 I really appreciate ____ to help me, but I am sure that I can manage by myself.
①  you to offer
②  that you offer
③  your offering
④  that you are offering
【单选题】 Half of the money____ your brother. ?
①  belong to ?
②  belong ?
③  belongs to ?
④  belongs?
【单选题】 25. A pilot should be responsible ____ the safety of all the passengers on board.
①  against
②  for
③  at
④  with
【单选题】 After ten years, all these youngsters became____.
①  grown-up
②  grown-ups
③  growns-ups
④  growns-up
【单选题】 We’ll go out as soon as I’ve ____ the kitchen.
①  sent for
②  cleaned up
③  done with
④  worked out
【单选题】 “I haven’t read ____ of the last four chapters, so I know little about them.”
①  something
②  some
③  any
④  anything
【单选题】 By the end of next month he ____ everything in school.
①  will finish
②  will have finished
③  finishes
④  would finished
【单选题】 Even great musicians require ____ practice.
①  convenient
②  continual
③  continuous
④  contrary
【单选题】 Wealthy ____ he was, the governor would not spend a penny on such things.
①  as
②  if
③  though
④  however
【单选题】 —Guest: Oh, it’s ten o’clock. I’d better go now.—Host: ____.
①  OK. Please walk slowly and take care.
②  Why do you want to go now? Don’t you want to stay?
③  Yeah, it’s really late. Why not immediately?
④  Won’t you stay for another cup of coffee?