当其它条件一定时,增加电流,则焊接线能量将()。
A.增大
B.减少
C.不变
参考答案:A
It was ____surprise that my first teacher, already 90, was still living and in _____ good health.
A the, a B ∕, a C a, ∕ D a, the
宋初四部大书