超静定结构支座移动时,如果刚度增大一倍则()。
A.内力也增大一倍、而位移不变
B.内力也缩小一倍、而位移不变
C.内力缩小一倍、位移也缩小一倍
D.内力和位移都不变
参考答案:A
How do we say the number 110,206?
A.one hundred and ten thousand, two hundred and six.
B.one hundred and ten thousands and two hundreds and six.
C.one hundred and ten thousand and two hundred and six.
D.one hundred, ten thousand, two hundred and six.
鼠标器与主机的接口有()。
A.RS-232串行接口
B.PS/2
C.USB
D.以上都有