小儿腹泻伴脱水，应首选的检查（）
A.结核抗体检查
B.支原体抗体
C.血电解质测定
D.腹部CT检查
E.血常规检查
参考答案：C
-We should believe in ourselves.
-________Selfconfidence is the first secret of success.[ ]
A．It's up to you.
B．Thank goodness!
C．Let's get going.
D．I'm with you on that.
1GB的准确值是______。
A．1024×1024 Bytes
B．1024 KB
C．1024MB
D．1000×1000KB
