皮皮学，免费搜题
登录
搜题
【单选题】
圆轴受扭，如图所示，已知截面上A点的切应力为5MPa，则B点的切应力为（）。A.
5MPa
B.
10MPa
C.
15MPa
D.
0
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A．I'm Mary. B．Can I help you? C．Sorry, the line is busy. D．Sorry, he's not in.
【单选题】— Where's Jack today? — Oh, I'm sorry to say that he had ______ accident yesterday. And now he is in ______ hospital. [ ]
A.
a, the
B.
the, a
C.
/, the
D.
an, /
【单选题】下列物质不可能是乙烯加成产物的是()。 [ 单选题 ] *
A.
CH 3 CH 3
B.
CH 3 CHCl 2
C.
CH 3 CH 2 OH
D.
CH 3 CH 2 Br
【简答题】以下线路工艺不规范的是( )
【单选题】When the narrator says “I’m sorry I never told him how sorry I was,” he means that “______.”
A.
I regret that I never apologized to my father before he died
B.
I regret I never really understood what sorry means
C.
I apologized to my father for my reluctance to walk with him
D.
I apologized to my father for the lack of a good heart
【单选题】有国外学者R•纳什指出:“人们对自然了解越多,就越难以接受那种认为宇宙是为人类而存在的观点。与其说人类是自然的主人,不如说他是自然共同体的一个成员。”这个论断说明()
A.
人类是受到自然规律支配的群体
B.
人类应与自然界协调发展
C.
人类既是自然的主人,又是自然界的成员
D.
人类是宇宙的主宰
【简答题】When the narrator says “I’m sorry I never told himhow sorry I was,” he means that “______.”A. I regret that I never apologized to my fatherbefore he died B. I regret I never really understood what sor...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
