碘量法常用淀粉为指示剂，直接碘量法的终点是从蓝色变无色，间接碘量法的终点是从无色变蓝色。（）
参考答案：错
The little girl _____ her heart out because she _____ her toy bear and believed she wasn't ever
going to find it. [ ]
A. had cried ; lost
B. cried ; had lost
C. has cried ; he lost
D. cries ; had lost
文房四宝中的“端砚”产自（）
A.广东
B.福建
C.渐江
