从8时到12时,王师傅共加工320个零件,平均每小时加工______个零件.
320÷(12-8),
=320÷4,
=80(个).
答:平均每小时加工80个零件.
故答案为:80.
Sun Yanzi is a singer, I like ______ very much. [ ]
A. she
B. her
C. hers
D. herself
二期锅炉再热器由()、()、()三期组成。