下列哪一项对滴丸圆整度无影响()
A.滴丸单粒重量
B.滴管的长短
C.液滴与冷却液的密度差
D.液滴与冷却剂的亲和力
E.冷却方式
参考答案:B
Lily _____ English very well _____ she doesn't know Japanese.[ ]
A. speaks, but
B. talks, but
C. speaks, and
D. talks, and
在考生文件夹下分别建立KANG1和KANG2两个文件夹。