下列计算结果最小的是 [ ]
A.1+2
B.1-2
C.1×2
D.1+2
答案：B
Jin Yong is one of the greatest and oldest _________ writers. He is still_________.
A．living; alive
B．living; living
C．alive; living
D．alive; alive
以下不属于维生素D缺乏性佝偻病早期临床表现的是
A．手镯
B．夜惊
C．多汗
D．枕秃
E．易激惹
