【简答题】使用4个触发器进行级联而构成二进制计数器时,可以对从0到____的二进制数进行计数。
【单选题】What do John and Professor Kim mainly discuss?
A.
John’s family problems
B.
a dream John used to have
C.
a job that John found challenging
D.
obstacles that John has to overcome
【多选题】以下包装印刷工艺,能使印刷版面出现显著凹凸,丰富画面效果的有( )。
【多选题】如图是硫酸试剂瓶标签上的内容. (一)该硫酸的物质的量浓度为______; (二)实验室用该硫酸配制240mL0.46mol/L的稀硫酸,则 (1)需要该硫酸的体积为______mL; (2)有以下仪器:①烧杯②100mL量筒③250mL容量瓶④500mL容量瓶⑤玻璃棒⑥托盘天平(带砝码)⑦10mL量筒⑧胶头滴管,配制时,必须使用的仪器有______(填代号); (3)配制过程中有几个关键的步骤和...
【单选题】使用4个触发器进行级联而构成二进制计数器时,最多可以对从0到( )的二进制数进行计数。
【简答题】A.He thinks Professor John deserves the praise. B.He will talk to Bob about what happened. C.He believes Bob was rude to Professor John. D.He admires Bobs frankness.
【单选题】在遵循会计核算的基本原则下,评价某些项目的( )时,很大程度上取决于会计人员的职业判断。
【单选题】According to the passage, John Scopes was _______.
A.
a professor teaching history.
B.
a biology teacher from a high school in Tennessee.
C.
a scientist famous for his theory of revolution.
D.
convicted and free for violating the law.