轧制钢板的纤维组织有纵、横之分，当弯曲半径不大于（）时，就必须考虑纤维方向对弯曲半径

Jack went to a barber's shop and had his hair cut, but when he came out, he was not happy with the result(结果). When his friend Bob saw him, he laughed and said, "What has happened to your hair, Jack?"

Jack said, "I tried a new barber's shop today, because I wasn't quite satisfied with my old one, but this one seems even worse."

Bob agreed(同意). "Yes, I think you're right, Jack. Now I'll tell you what to do when you go into a barber's shop next time: look at all the barber's hair, find out whose hair looks worst, and then go straight to him."

"Why shall I go to him?" Jack asked. "But that would be foolish!"

"Oh, no, it wouldn't," answered Bob. "Who cut that man's hair? Just think it. He couldn't cut it himself, could he? Another of the barbers cut it. So you know he can't be the worst barber."

小题1:When Jack went out of the barber's shop, he was not happy because                      ____.

A．nobody had cut his hair

B．the barber hadn't cut his hair well

C．the barber had cut his hair carefully

D．he was not satisfied with his old barber小题2:"I tried a new barber's shop today." means ____.

A．this barber's shop was a new one

B．this was the only barber's shop in this town

C．Jack often went to this barber's shop

D．Jack had not been to this barber's shop before小题3:After Jack had his hair cut, he thought ____.

A．the new barber's shop was the best one

B．the old barber's shop wasn't so good as the new one

C．the new barber's shop was worse than the old one

D．the old barber's shop was the worst one小题4:Bob told Jack to find out which barber's hair looked the worst and then go straight to him. Why?

A．Because he was certainly the best barber.

B．Because he was free all the time.

C．Because he was the worst barber.

D．Because he wasn't the worst barber.小题5:From the story we know that ____.

A．it's foolish to have one's hair cut at a barber's shop

B．barbers cut each other's hair

C．barbers never have their hair cut

D．a barber always cuts his hair by himself

孙中山说：“前代革命……只以驱除光复自任，此外无所转移。我等今日前代殊，于驱除鞑虏、恢复中华之外，国体民生，尚当变更。虽经纬万端，要其一贯之精神，则为自由、平等、博爱。故前代为英雄革命，今日为国民革命。”下列对材料的解读不准确的是

A．蕴含了民族革命、政治革命和社会革命的内容

B．与传统革命相区别，赋予了近代干革命全新内容

C．“驱除鞑虏、恢复中华”是三民主义的核心

D．其思想体系体现现了民主共和革命的意识形态

“质量是企业的生命”，企业重视产品质量  [ ]

A．有利于实现商品的价值，促进企业的发展

B．有利于降低生产商品的个别劳动时间

C．有助于企业提高劳动生产率，增加职工的收入

D．有利于增加企业的销售额，使企业获得利益

一辆运送沙子的自卸卡车装满了沙子，沙子和卡车车厢底部材料的动摩擦因数为μ₂，沙子之间的动摩擦因数为μ₁，车厢的倾斜角用θ表示（已知μ₂＞μ₁）则

A．要顺利地卸干净全部沙子，应满足tanθ＞μ₂

B．要顺利地卸干净全部沙子，应满足sinθ＞μ₂

C．只卸去部分沙子，车上还留有一部分，应μ₁＜tanθ＜μ₂

D．只卸去部分沙子，车上还留有一部分，应μ₁＜sinθ＜μ₂

鼠标空闲时，在绘图区右键，从快捷菜单中可以看到很多经常使用的命令，下列不属于快捷菜单的是（）。

A.快速选择、快速计算器、查找

B.缩放与平移

C.放弃与重做

D.复制、粘贴与特性匹配