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【多选题】
随着计算机技术的发展,属于电子支付工具的有A.
电子货币类支付工具
B.
移动支付类支付工具
C.
电子支票类支付工具
D.
电子信用卡类支付工具
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】为预防老年人骨质疏松，膳食中应增加富含（）的食物。
【单选题】Which of the following is not considered an "owned" reserve?
A.
National currencies
B.
Gold
C.
Special drawing rights
D.
Oil facility
【简答题】USC (University of Southern California) University Hospital is a private, 293-bed research and teaching hospital staffed by the faculty of the famous Keck School of Medicine of USC. Opened in May,1991...
【单选题】In order to make our city green, .
A.
it is necessary to have planted more trees
B.
many more tress need to plant
C.
we must plant more trees
D.
our city needs more trees
【单选题】We welcome you to our city. you ______to our city.
A.
welcome
B.
are welcome
C.
have welcomed
D.
are welcoming
【简答题】PHP 中有很多以两个下划线开头的方法,称之为 【 】。
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