Mike often _____ a shower in the morning. [ ]
A. makes
B. have
C. takes
D. take
答案:C
国际法编纂
刚玉、金刚石、水晶、橄榄石、黄玉、软玉、翡翠,韧性从高到低的顺序为()
A.软玉→翡翠→刚玉→金刚石→水晶→橄榄石→黄玉
B.刚玉→金刚石→水晶→橄榄石→黄玉→软玉→翡翠
C.金刚石→刚玉→水晶→黄玉→橄榄石→软玉→翡翠