对于凹透镜,当光心距小于瞳距时,具有底朝外样的棱镜效应。()
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移动支付模式是在第三方支付模式的基础之上,用手机端替换了PC端,将手机的移动优势与支付结合,让支付无处不在。()
Ciscowcsissupportedonwhichtwoofthefollowingoperatingsystems?()
A. macosx
B. windows2000sp4
C. solaris10
D. windowsserver2003
E. debianlinux
Which version of NTP was the first to support cryptographic authentication?()
A. Version 1
B. Version 5
C. Version 4
D. Version 3
晶状体由晶状体囊膜、皮质、实质、悬韧带四部分组成。()