皮皮学，免费搜题
登录
搜题
【单选题】
下面哪些子网掩码常常用做设备互联掩码?A.
255.255.255.192
B.
255.255.255.224
C.
255.255.255.240
D.
255.255.255.252
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】成本管理不再是仅强调成本的控制,而是着眼于企业( )的构建,具有竞争性和前瞻性。
【单选题】'Before, we were too black to be white. Now, we're too white to be black.' Hadija, one of South Africa's 3.5m Coloured (mixed race) people, sells lace curtains at a street market in a bleak township o...
A.
made all the families leave District Six so that a new Methodist church would be built there
B.
drove out all the residents in District Six so that a museum would be built there
C.
forced all the families to leave District Six so that the buildings there would be largely pulled down
D.
requested that all the residents leave District Six so that a street plan could be put forward
【单选题】下列关于刚结点的说法正确的是（）。
A.
刚结点所连接的各个杆件在结点处可以相对移动但不能相对转动
B.
刚结点所连接的各个杆件在结点处不能相对移动但可以相对转动
C.
刚结点所连接的各个杆件在结点处既可以相对移动也可以相对转动
D.
刚结点所连接的各个杆件在结点处既不能相对移动也不能相对转动
【单选题】The rods of our eyes see ______.
A.
colors
B.
black and white
C.
both colors and black and white
D.
visible wavelength colors
相关题目：