【简答题】二进制数 11011101111111 除以 16 的余数是 __________Q 。
【单选题】What is the risk facing America?
A.
Its schools will be overwhelmed by the growing number of illegal immigrants.
B.
The rising generation will be less well educated than the previous one.
C.
More poor and non-white students will be denied access to college.
D.
It is going to lose its competitive edge in higher education.
【单选题】Sunday is the _______ day of a week.
【单选题】如图所示为某家庭卫生间电路,电灯和电热器都在正常工作.在三线插座上刚插上洗衣机(开关未闭合)的插头时,所有用电器都停止工作,拔出洗衣机的插头后,用测电笔测试三线插座的左右两孔,氖管都发光,发现有一根熔丝熔断了.下列分析不合理的是( )
B.
断开S 1 、S 2 ,再用测电笔检测三线插座的左右两孔,氖管都发光
C.
只断开S 1 ,再用测电笔检测开关S 1 的两个接线柱,氖管都发光
D.
只断开S 2 ,再用测电笔检测开关S 1 的两个接线柱,氖管都发光
【多选题】下面所描述的特征中属于化学吸附的是( )。
【单选题】The first day of the week is _____________. [ ]