皮皮学，免费搜题
登录
搜题
【单选题】
切削速度的增加，切削温度、切削力也随之增加，而当切削速度增加到一定临界值时，如再增加，则（）。A.
切削温度和切削力急剧上升
B.
切削温度和切削力急剧下降
C.
切削温度和切削力不再变化
D.
切削温度不变但切削力急剧下降
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
【单选题】Ancient cave art and more recent paintings and sculpture illustrate only people's fear about bears.
A.
Y
B.
N
C.
NG
【单选题】Who said 'The only thing we have to fear is fear itself'?
A.
Abraham Lincoln.
B.
Winston Churchill.
C.
John F. Kennedy.
D.
Franklin D.Roosevelt.
【简答题】Franklin Roosevelt told the Americans that the only thing we have to fear is ________.
【单选题】In his inaugural speech,______said that 'the only thing we have to fear is fear itself'.
A.
Lyndon Johnson
B.
Theodore Roosevelt
C.
John F. Kennedy
D.
Franklin Roosevelt
【单选题】'The only thing we have to fear is fear itself' meant that ______.
A.
Americans would lose if they gave way to fear
B.
Americans have no real troubles during the 1930s
C.
F. D. R. would solve America's problems because he was not afraid
D.
Americans were in trouble because they hadn't looked at their troubles with clear heads
【单选题】In his inaugural speech,______said that 'the only tiling we have to fear is fear itself.'
A.
Abraham Lincoln
B.
Theodore Roosevelt
C.
Woodrow Wilson
D.
Franklin Roosevelt
相关题目：
参考解析：
知识点：
题目纠错 0
发布
