家蚕的发育过程是 [ ]
A.受精卵→若虫→成虫
B.受精卵→幼虫→成虫→蛹
C.受精卵→幼虫→蛹→成虫
D.蛹→受精卵→幼虫→成虫
答案:C
Use your head, ________ you’ll work out the problem.
A.or
B.and
C.so
D.for
理念识别(MI)