甲醇蒸发残渣的测定时放在水浴上蒸发时的蒸发温度控制多少度？
参考答案：
60±2℃。
男，40岁，腹痛2天伴腹胀，呕吐，无排气，肠鸣音亢进，3年前有腹部手术史。首先考虑的诊断为（）
A.痉挛性肠梗阻
B.粘连性肠梗阻
C.麻痹性肠梗阻
D.绞窄性肠梗阻
E.蛔虫性肠梗阻
Can you make sure ______ the gold ring?
A．where Alice had put
B．where did Alice put
C．where Alice has put
D．where has Alice put
