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【单选题】
地震作为主灾,可能引起的自然灾害有 ① 海啸 ② 火山喷发 ③ 滑坡 ④ 龙卷风 [     ]
A.
①②
B.
①③
C.
③④
D.
②④
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【简答题】磁电系电流表由 和 两者组成 组成。
【单选题】可摘义齿固位体中的直接固位体作用是防止义齿向()
A.
方脱位
B.
龈方脱位
C.
龈颊向脱位
D.
龈舌向脱位
E.
龈颊舌向脱位
【单选题】某企业采用月末一次加权平均法核算原材料,月初库存材料100件,每件为80元,月中又购进两批,一次150件,每件75元,另一次250件,每件85元,则月末该材料的加权平均单价为( )元。
A.
81
B.
72.5
C.
75
D.
85
【多选题】Which one is the merit of the computer?
A.
Keep in touch with our friends and family members through video chat.
B.
Efficiently find the information through search engine.
C.
Teachers can utilize online resources to make a supplement to their teaching contents.
D.
The employees have more freedom, and more flexible work schedules.
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyle
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently .
【简答题】磁电系电流表由 和 两者并联组成。
【多选题】Which one is the merit of the computer?
A.
Teachers can utilize online resources to make a supplement to their teaching contents.
B.
Efficiently find the information through search engine.
C.
The employees have more freedom, and more flexible work schedules.
D.
Keep in touch with our friends and family members through video chat.
【多选题】AutoCAD执行指令的方式有哪几种?
A.
绘图菜单
B.
绘图工具栏
C.
屏幕菜单
D.
绘图命令
【简答题】磁电系电流表由 和 两者 组成。
【多选题】Which one is not the merit of the computer?
A.
Keep in touch with our friends and family members through video chat
B.
The employees have more freedom and more flexible work.
C.
Rely too much on computer.
D.
Leading to an unhealthy and sedentary lifestyle.
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