单项选择题

定时器T延时时间=（）
A、定时时间=单位时间脉冲X K
B、定时时间=T0 X K
C、定时时间=单位时间脉冲X 扫描次数
D、定时时间=单位时间脉冲X K30

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‍云计算使得使用信息的存储是一个（）的方式，它会大大地节约网络的成本，使得网络将来越来越泛在、越来越普及，成本越来越低。‌

答案： A.分布式 B.密闭式 C.密集式 D.共享式

单项选择题

Which of the four choices can substitute the underlined clause in the following sentence?
The UK climate has been warming, and especially the annual average temperature of the central England has increased by about 1 C over the last century.

A．
with the central England annual average temperature increased by about 1 C over the last century
B． with the central England annual average temperature increasing by about 1 C over the last century
C．
the central England annual average temperature has increased by about 1 C over the last century
D．
which the central England annual average temperature increased by about 1 C over the last century