A New Year resolution is ______.
A. made to begin a new year
B. a promise to make a joke
C. a decision to improve oneself and make one a better person
D. to be kept for the New Year's Day only
第1题:
如何在新窗口中打开链接?
A.<a href="url" new> xxx</a>
B.<a href="url" target="_blank">xxx</a>
C.<a href="url" target="new">xxx</a>
D.<a href="url" target="_new">xxx</a>
第2题:
判断闰年的函数,把下列语句补充完整。 leap.year <- function (year) { ifelse (, TRUE, FALSE) }
A.(year %% 4 == 0 & year %% 100 != 0)
B.(year %% 4 == 0 & year %% 100 != 0) || year %% 400 == 0
C.(year %% 4 == 0 || year %% 100 != 0)
D.(year/4 == 0 & year/100 != 0) || year/400 == 0
第3题:
使用变量year代表年份,以下表示判断year是否为闰年的布尔表达式是 。
A.(year % 4 == 0) and (not(year % 100 == 0)) or (year % 400 == 0)
B.(year % 4 == 0) and (not(year % 400 == 0)) or (year % 100 == 0)
C.(year % 4 == 0) and (year % 100 == 0) or (year % 400 == 0)
D.(year % 4 == 0) or (not(year % 100 == 0)) and (year % 400 == 0)
第4题:
1、判断是否闰年的表达式(如果是闰年则值为1,否则为0)为()
A.((year%4==0)&&(year%100!=0))||(year%400==0)
B.((year%4==0)&&((year%100!=0)||(year%400!=0)))
C.((year%4==0)||(year%100!=0)&&(year%400==0))
D.(year%4==0)||((year%100==0)&&(year%400!=0))
第5题:
1、如何在新窗口中打开链接?
A.<a href="url" new> xxx</a>
B.<a href="url" target="_blank">xxx</a>
C.<a href="url" target="new">xxx</a>
D.<a href="url" target="_new">xxx</a>
第6题:
判断是否闰年的表达式(如果是闰年则值为1,否则为0)为()
A.((year%4==0)&&(year%100!=0))||(year%400==0)
B.((year%4==0)&&((year%100!=0)||(year%400!=0)))
C.((year%4==0)||(year%100!=0)&&(year%400==0))
D.(year%4==0)||((year%100==0)&&(year%400!=0))