【单选题】充分条件假言命题有p(前件)、q(后件)两种事物情况,只有在p()q()的情况下,命题为假:
【单选题】It was between 1830 and 1835 ____ the modern newspaper was born.
【单选题】The tutor thinks that Anna Maria has chosen ______.
A.
the wrong science subject
B.
the wrong computer subject
C.
the wrong English subject
【单选题】Maria often has a walk with__parents in the morning.
【简答题】直流伺服电机主要由定子、 电刷与换向片组成。
【单选题】It was between 1830-1840 modern newspaper was born.
【单选题】'Maria has blisters in her boots.' 'She ______ walking such a long distance.'