皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
对于向量 ， ， 和实数 ，下列命题中真命题是（　　）
A.
若 ，则 或
B.
若 ，则 或
C.
若 ，则 或
D.
若 ，则
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【单选题】轮齿弯曲强度计算中的齿形系数 Y Fa 与 无关。
A.
齿数
B.
变位系数
C.
模数
D.
斜齿轮的螺旋角
查看完整题目与答案
【单选题】The U.S. official said North Korea --- and Iran --- should follow in the steps of Libya, which last December said it would work__________ to allow international weapons inspectors to do their work.
A.
unconditionally
B.
unwillingly
C.
unfortunately
D.
uncomfortably
查看完整题目与答案
【单选题】齿轮弯曲强度计算中的齿形系数 Y Fa 反映了 对齿轮弯曲强度的影响。
A.
轮齿的形状
B.
轮齿的大小
C.
齿面硬度
D.
齿面粗糙度
查看完整题目与答案
【简答题】A．They may fail to feel secure later in the life. B．They may become bad-tempered. C．They may develop mental problems. D．They may lose trust in the society.
查看完整题目与答案
【简答题】A．They may be homesick, and feel insecure. B．They may try to attract other people's attention. C．They are either cold or very sick. D．They want to protect themselves from physical injuries.
查看完整题目与答案
【单选题】轮齿弯曲强度计算中的齿形系数 Y Fa 与 无关。
A.
齿数 z 1
B.
变位系数 x prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
模数 m
D.
斜齿轮的螺旋角β
查看完整题目与答案
【单选题】启动线程时，需要调用（ ）方法。
A.
start()
B.
run()
C.
currentThread()
D.
join()
查看完整题目与答案
【单选题】启动主线程时，（ ）。
A.
需要调用start()方法
B.
需要调用run()方法
C.
需要调用currentThread()方法
D.
不需要调用任何方法
查看完整题目与答案
【单选题】Which TWO of the following apply to shares of companies whose names end in ‘Ltd’? (1) They may not be issued to non-members (2) They may not be offered to the public (3) They may not be transferred (4...
A.
(1) and (2)
B.
(2) and (3)
C.
(1) and (4)
D.
(2) and (4)
查看完整题目与答案
【简答题】A．They may be homesick and feel insecure. B．They may try to attract other people's attention. C．They are either cold or sick. D．They want to protect themselves from physical injuries.
查看完整题目与答案
相关题目：
【单选题】轮齿弯曲强度计算中的齿形系数 Y Fa 与 无关。
A.
齿数
B.
变位系数
C.
模数
D.
斜齿轮的螺旋角
查看完整题目与答案
【单选题】The U.S. official said North Korea --- and Iran --- should follow in the steps of Libya, which last December said it would work__________ to allow international weapons inspectors to do their work.
A.
unconditionally
B.
unwillingly
C.
unfortunately
D.
uncomfortably
查看完整题目与答案
【单选题】齿轮弯曲强度计算中的齿形系数 Y Fa 反映了 对齿轮弯曲强度的影响。
A.
轮齿的形状
B.
轮齿的大小
C.
齿面硬度
D.
齿面粗糙度
查看完整题目与答案
【简答题】A．They may fail to feel secure later in the life. B．They may become bad-tempered. C．They may develop mental problems. D．They may lose trust in the society.
查看完整题目与答案
【简答题】A．They may be homesick, and feel insecure. B．They may try to attract other people's attention. C．They are either cold or very sick. D．They want to protect themselves from physical injuries.
查看完整题目与答案
【单选题】轮齿弯曲强度计算中的齿形系数 Y Fa 与 无关。
A.
齿数 z 1
B.
变位系数 x prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
模数 m
D.
斜齿轮的螺旋角β
查看完整题目与答案
【单选题】启动线程时，需要调用（ ）方法。
A.
start()
B.
run()
C.
currentThread()
D.
join()
查看完整题目与答案
【单选题】启动主线程时，（ ）。
A.
需要调用start()方法
B.
需要调用run()方法
C.
需要调用currentThread()方法
D.
不需要调用任何方法
查看完整题目与答案
【单选题】Which TWO of the following apply to shares of companies whose names end in ‘Ltd’? (1) They may not be issued to non-members (2) They may not be offered to the public (3) They may not be transferred (4...
A.
(1) and (2)
B.
(2) and (3)
C.
(1) and (4)
D.
(2) and (4)
查看完整题目与答案
【简答题】A．They may be homesick and feel insecure. B．They may try to attract other people's attention. C．They are either cold or sick. D．They want to protect themselves from physical injuries.
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题