【单选题】关于电子商务安全,下列说法中错误的是?
A.
电子商务安全包括计算机网络安全和电子交易安全
C.
电子商务安全与网络安全的区别在于其有不可抵赖性的要求
【简答题】供食用的冷冻的半头牛肉,为整头牛切成一半,未经进一步加工
【单选题】目前商业银行生存和发展的主要决定因素是 ( )。
【单选题】My English is improving. It is getting _____ and _____. [ ]
【单选题】The Internet is improving by leaps and bounds every day because it______.
A.
is easier to learn than merely face-to-face
B.
provides an excellent and powerful resource
C.
is increasingly equal and affordable
D.
is an increasing supply of millions of URLs
【简答题】A.It is good for improving muscle tone. B.It helps him lose weight. C.It helps develop mental toughness. D.It helps strengthen the heart.
【简答题】A.It is good for improving muscle tone. B.It helps strengthen the heart. C.It helps develop mental toughness. D.It does good to his skills.
【简答题】A.It is good for improving muscle tone. B.It helps strengthen the heart. C.It helps develop mental toughness. D.It does good to his skills.
【单选题】在两金属相接触后,逸出功较小的金属由于( )电子而( )电势。
【单选题】语境这一概念最早由波兰人类学家B.Malinowski在1923年提出来的。他将语境分为哪两类?