【单选题】下列关于基因工程的叙述中错误的是()
A.
基因工程是人工进行基因切割、重组、转移和表达的技术,是在分子水平上对生物遗传做人为干预
C.
基因工程食品即转基因食品对人体一定是不安全的
【单选题】下列关于基因工程应用的叙述中,错误的是 ( )
【判断题】A receptionist needn't read all notices posted on the notice board.
【单选题】下列关于基因工程应用的叙述中,错误的是()
【单选题】电路如图所示。该电路实现( )进制计数器。
【单选题】NOTICES FOR DISPLAY ABOVE THIS PHOTOCOPIER MUST FIRST BE HANDED TO RECEPTION.
A.
You can photocopy notices at Reception for display here.
B.
Photocopied notices can only be displayed at Reception.
C.
Take your notice to Reception if you want it displayed here.
【单选题】Temporary and Preliminary Notices are placed at the end of _____ Admiralty Notices to Mariners.
【单选题】下列关于基因工程应用的叙述,错误的是 [ ]
【单选题】Demographer Wendell Cox predicates that ______.
A.
the family-centric focus will be more common
B.
more people will take full-time jobs at home
C.
one in 10 people will have a part time job
D.
IBM will change its work pattern