皮皮学，免费搜题
登录
搜题
【单选题】
超声刀是一种安全可靠的新型手术用切割止血设备,刀头的振动频率约为A.
10 kHz
B.
30 kHz
C.
55.5 kHz
D.
45.5 kHz
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】There is milk in the fridge. You need to buy some. [ ]
A.
a few
B.
a little
C.
few
D.
little
【单选题】腾讯公司的微信、QQ等软件的语音通话或视频通话功能极大地方便了用户的需求,它们主要采用的信息交换技术是()
A.
电路交换
B.
报文交换
C.
分组交换
D.
资源交换
【单选题】There is milk in the bottle. Could you please get for me? [ ]
A.
a little; any
B.
little; some
C.
a few; some
D.
a little; some
【单选题】There is milk in the refrigerator.I have to go and get .
A.
little；some
B.
a little；any
C.
few；some
D.
a few；any
【单选题】There is milk in the fridge. Please go and buy some, Jim.
A.
little
B.
few
C.
a little
相关题目：
参考解析：
知识点：
题目纠错 0
发布
