人体内缺乏维生素C易患的疾病是 ( )。
A:甲状腺肿
B:软骨病
C:坏血病
D:白血病
—You're not ______ that job in the right way.
—Don't worry. I will try to improve it.
读“亚、欧、非三洲的分界线图”,完成下列问题。
下列计算正确的是( )