更多"What is the volume of a certain rec"的相关试题:
[单项选择]What is the length in meters of a certain rectangular garden ?()
(1)The length of the garden is 6 meters more than twice the width.
(2)The length of the garden is 4 times the width.
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]He is (certain) that the dictionary is just what 1 want.
A. sure
B. angry
C. doubtful
D. worried
[单项选择]In the rectangular coordinate system, are the points (r, s) and (u, ν) equidistant from the origin ?()
(1)r+s=1
(2)u=1-r and ν=1-s
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]A rectangular circuit board is designed to have width叫inches, perimeter p inches, and area k square inches. Which of the following equations must be true ?()
A. ω2+pω+k=0
B. ω2-pw4+2k=0
C. 2ω+pw+2k=0
D. 2ω-pω-2k=0
E. 22ω-pw+2k=0
[单项选择]The length of a rectangular kitchen floor is 3 feet more than its width. If the length of the floor is 12 feet, what is the area of the floor in square feet
A. 9
B. 15
C. 42
D. 108
E. 144
[单项选择]已知在一个类体中包含如下函数原型:VOLUME operator-(VOLUME)const;,下列关于这个函数的叙述中,错误的是
A. 这是运算符一的重载运算符函数
B. 这个函数所重载的运算符是一个一元运算符
C. 这是一个成员函数
D. 这个函数不改变类的任何数据成员的值
[单项选择]已知在一个类体中包含如下函数原型:VOLUME OPERATOR-(VOLUME)const;,下列关于这个函数的叙述中,错误的是( )。
A. 这是运算符-的重载运算符函数
B. 这个函数所重载的运算符是一个一元运算符
C. 这是一个成员函数
D. 这个函数不改变类的任何数据成员的值
[单项选择]physical dependence on certain substances results from ______.
A. uncontrolled consumption of them over long periods of time
B. exclusive use of them for social purposes
C. quantitative application of them to the treatment of diseases
D. careless employment of them for unpleasant symptoms
[单项选择]外贸跟单员小陈在T恤跟单中,对于客户要求“SOLID COLOR & SOLID SIZE”的装箱方法,其正确的理解和操作方法是( )。
A. 按颜色和尺码单独分别装入外箱中,即“独色独码”装箱
B. 取不同颜色和尺码的T恤衫,按一定的比例装入外箱中,即“混色混码”装箱
C. 取相同颜色和不同尺码的T恤衫,按一定的比例装入外箱中,即“单色混码”装箱
D. 取不同颜色和相同尺码的T恤衫,按一定的比例装入外箱中,即“混色独码”装箱
[单项选择]What happened in that class probably reflects what is happening in society ______.
A. at large
B. at random
C. at first
D. at length
[单项选择]Automobiles must have certain safety devices such as seat belts and good brakes.()
A. 汽车应有一定的安全性, 要有安全带和好的刹车。
B. 汽车有了安全带和好的刹车就是安全的。
C. 汽车应有安全装置, 比如安全带和好的刹车。
D. 汽车必须有安全带和好的刹车这两个安全装置。