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【单选题】
当买家拍下商品,卖家按照双方商定的价格在后台进行价格修改时,发现价格修改不成功,原因可能是( )。A.
买家已经进入到网银付款页面
B.
买家关闭了电脑
C.
后台系统不稳定
D.
网络不稳定
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于第二心音分裂，下列哪项是错误的
A.
健康青少年可出现生理分裂
B.
二尖瓣狭窄时可出现通常分裂
C.
房间隔缺损时可出现固定分裂
D.
主动脉瓣狭窄时可出现固定分裂
E.
主动脉瓣狭窄时可出现反常分裂
【单选题】关于第二心音分裂，下列哪项是错误的
A.
健康青少年可出现生理分裂
B.
二尖瓣狭窄时可出现通常分裂
C.
房间隔缺损时可出现固定分裂
D.
主动脉瓣狭窄时可出现反常分裂
E.
主动脉瓣狭窄时可出现反常分裂
【简答题】ABB工业机器人快速运动至各个关节轴零度位置,常用 运动指令 。
【单选题】关于第二心音分裂,下列哪项是错误的
A.
健康青少年可出现生理分裂
B.
二尖瓣狭窄时可出现通常分裂
C.
房间隔缺损时可出现固定分裂
D.
主动脉瓣狭窄时可出现反常分裂
E.
左束支传导阻滞时吸气末分裂音明显
【单选题】You need to attend an important meeting 10 minutes later, but your roommate want you to pick up his friend at the railway station, which of the following response is acceptable? ( )
A.
I wish that I could help, but I have an important meeting to attend immediately.
B.
That is impossible, I have no time.
C.
You are kidding me? I Don’t you see I’m so busy today?
D.
There is no way, I have an urgent meeting soon.
【单选题】听力原文：M: I want to do something tonight for a change let's go to the movies. W: In this heat? Are you joking? M: We can go to an outdoor movie. Do you think I'd suggest an indoor one in the middle of t...
A.
Their favorite movies
B.
Jokes for entertainment.
C.
Pastime for the night.
D.
Their eating habits.
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