实心圆截面轴1和空心圆截面轴2的材料、扭转力偶的矩m和长度ι均相同，最大剪应力也相等

根据首字母提示完成下面的短文。

     My brother e________(1) for half an hour every day. He s________(2) for ten hours every night.

He w________(3) TV for about an hour every day. He s________(4) eats cakes, sweets and meat.

He often e________(5) fruit and v________(6). He often w________(7) to school. He h________(8)

lunch at school. After lunch, he s________(9)for half an hour. Then he goes on to study. He goes

h________(10) at five in the afternoon.

19世纪四五十年代，林则徐、魏源提出了“师夷长技以制夷”的思想，这一新思想的基本特征之一是[ ]

A．从经书中寻章摘句

B．远离社会现实

C．主张重新认识世界

D．力主变革“祖宗之法”

       “竹帛烟销帝业虚，关河空锁祖龙居。坑灰未冻山东乱，刘项原来不读书。”这首诗对秦朝哪一历史事件作出了否定的评价 [ ]

A．统一度量衡

B．统一文字

C．焚书坑儒

D．修筑长城

产业关联度低的行业，成长能力较强。( )

国家指导性参考价格为：普通咨询报告，每份收费（）元。

A.100～300

B.100～500

C.300～800

D.300～1000