【判断题】电阻焊设备采用的加热原理为电阻加热原理。
【单选题】内含许多酶,可以促使物质氧化并释放能量的细胞器是
【单选题】I am interested _____ football, but I am not good _____ it. [ ]
【多选题】RH为( ),RM为( ),RL为( )。
【单选题】Not only ______ in photography, but _____ an courses to update my skills.
A.
I am interested; I took
B.
interested I am; did I take
C.
I am interested; did I take
D.
am I interested; I took