【判断题】1mol,80.1°C、101.325kPa 的液态苯向真空蒸发为80.1°C、101.325 kPa 的气态苯。已知该过程的焓变为30.87 kJ, 所以此过程的 Q = 30.87kJ。
【判断题】Mateo needs pencils, pens and a computer.
【多选题】依照规定,在某些单位中担任会计机构负责人(会计主管)的人员,以及从事相关会计工作的人员应当取得会计从业资格。这些单位有( )。
【单选题】Mary is Lucy’s _________. [ ]
【单选题】Why did Muslims hold the demonstration?
A.
Because they were paid less than others.
B.
Because they were suffering from the unemployment.
C.
Because they were deprived of their political fights.
D.
Because they felt offended with the cartoons
【单选题】Hold your tongue while others are speaking.
【单选题】It shocked Lucy’s parents ________ she were not given timely treatment, she would suffer from a cough for the rest of her life.
【单选题】Hold your tongue while others are talking.
【单选题】They hold that anyone who is in need should not be ______ assistance from all others.
【单选题】已知晶振频率为6MHz,下列程序的功能为()。
A.
P1.6引脚输出周期为200us的方波,P1.7引脚输出占空比为1:5的矩形波
B.
P1.6引脚输出周期为400us的方波,P1.7引脚输出周期为1.6ms的方波
C.
P1.6引脚输出周期为200us的方波,P1.7引脚输出周期为800us的方波
D.
P1.6引脚输出占空比为1:5的矩形波,P1.7引脚输出周期为200us的方波