【单选题】The cellphone, a device we have lived with for more than a decade, offers a good example of a popular technology's unforeseen side effects. More than one billion are【1】use around the world, and when a...
【单选题】Deaths from Ecstasy are sometimes caused by ______.
A.
people with pre-existing conditions
B.
too much fluid in the body
C.
overheating of the body
【单选题】The cellphone, a device we have lived with for more than a decade, offers a good example of a popular technology's unforeseen side effects. More than one billion are (1)_____ use around the world, and...
【单选题】204 根据射频标签工作方式将射频技术分为被动式、半被动式和
【单选题】If you copy the online information onto your PC device, you will ______ .
A.
save the time of connecting to the online system
B.
reduce the risk of losing information
C.
pay just local telephone charges
D.
get local information only