【单选题】The gadgets, they claim, are harmful in extreme cases and heavy users often neglect their friends and family in favor of using them. Question: What does "heavy users" mean?
A.
these people who have a poor heath
B.
these people who often use the gadgets
C.
these people who suffer from obesity
D.
these people who work hard
【判断题】《国务院办公厅关于加强旅游市场综合监管的通知》提出,要充分发挥“12315” 等旅游服务热线和旅游投诉举报网络平台作用,鼓励社会牢各 界积极提供各类违法违规行为线索。
【判断题】立体声FM无线广播系统中,调频之前的信号包含基带信号和频带信号两部分,其中基带信号是左右声道信号的差信号,频带信号则是左右声道信号的和信号。
【判断题】立体声FM无线广播系统中,调频之前的信号包含基带信号和频带信号两部分,其中基带信号是左右声道信号的差信号,频带信号则是左右声道信号的和信号。
【简答题】横线里该填多少? 2×______+1=9 ______×3-1.3=3.8 4×______-2.4=4.8 2.5÷(3-______)=5.
【简答题】看拼音写词语。 dù juān hé shì jiān bèi yí dònɡ shāo wēi ( )( ) ( ) ( ) ( )
【单选题】The gadgets, they claim, are harmful in extreme cases and heavy users often neglect their friends and family in favor of using them.Question:What does "heavy users" mean?
A.
people who always use their mobile phones
B.
peopel who always smoke
C.
people who seldom use their mobile phones
D.
people who seldom smoke
【简答题】根据设计类型的不同,扫描仪可分为 ____________ 、 馈纸扫描仪、胶片扫描仪、名片扫描仪。