呼叫中心是一种基于()的一种新的综合信息服务系统。
A.IT技术
B.CTI技术
C.WEB技术
D.CRM技术
参考答案:B
—He plays basketball so well! Who taught _______?
—He learnt it by _______.
A.him; him
B.himself; himself
C.him; himself
D.himself; him
在口腔、肠内均能进行化学性消化的食物成分是( )
A.淀粉
B.水
C.脂肪
D.蛋白质