皮皮学,免费搜题
登录
搜题
【简答题】
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两多余选项。 Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation that is bad for your health, but here are some ways to protect yourself from computer radiation. 小题1: . Green tea can be absorbed by the body easily into a form of vitamin A, which helps reduce radiation. 小题2: It is advisable to attach a radiation filter plate (辐射过滤板) in front of your computer’s screen. Make sure to avoid putting any metal substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health. 小题3: The brighter the screen the higher the radiation there will be and vice versa. You can also put some radiation-absorbing plants such as several cacti (仙人掌)near your computer to prevent radiation. Make sure you do a skincare protection before sitting in front of the computer. 小题4: Wash your face soon after using the computer in order to reduce 70% of the radiation. _小题5: Old computer in general, has one to two times more radiations released than the new one within the same distance. A.And adjust the brightness of your computer screen. B.Apply a layer of facial mask to protect yourself. C.And adjust the sound level on your computer. D.The most efficient way is by drinking some coffee regularly. E. The simplest way is by drinking 2 & 3 cups of green tea every day. F. If possible, purchase a new computer instead of using an old model computer. G. It also helps keep our eyes see things clearly in the dark by improving the visual ability.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】下列表面活性剂属于聚氧乙烯型非离子表面活性剂的是( )。
A.
AEO系列
B.
OP系列
C.
TX系列
D.
Span系列
【多选题】边境检查的内容包括
A.
护照检查
B.
签证检查
C.
出入境登记卡检查
D.
交通票据
E.
行李物品检查
【单选题】下列哪项不是典型心绞痛的特点
A.
诱因常为过度活动、情绪激动或夜间
B.
针刺样或刀割样疼痛
C.
部位多在胸骨后或心前区,常向左肩、左臂放射
D.
休息或冠脉扩张剂可缓解
【简答题】商务旅行的类型有: 等。
【简答题】现有资料如下表所示,请填写表格并回答问题。 生产阶段 产品价值 中间产品成本 增值 小麦 100 0 1 面粉 120 2 3 面包 4 5 30 合计 6 (1) 各个阶段的增值和是多少? (2) 最终产品面包的价值是多少?
【单选题】毛泽东在《发刊词》中说的“伟大工程”是指
A.
走农村包围城市的道路,夺取全国的胜利
B.
建立并巩固抗日民族统一战线
C.
建立广大群众性的马克思主义政党
D.
建立新民主主义的新国家、新社会
【单选题】购房规划和退休养老规划在客户状况不佳时,可以推迟理财目标的实现时间,而教育规划则完全没有这样的()。
A.
时间刚性
B.
时间弹性
C.
费用刚性
D.
费用弹性
【多选题】下列表面活性剂属于多元醇型非离子表面活性剂的是( )。
A.
甘油脂肪酸酯
B.
蔗糖脂肪酸酯
C.
失水山梨醇脂肪酸酯
D.
烷基糖苷
【简答题】自感式传感器是把被测量的变化转换成自感的变化,通过一定转换电路转换成电压或电流输出。可分为______式自感传感器、______式自感传感器和螺线管是自感传感器。
【简答题】现有如下资料: 生产阶段 产品价值 中间产品成本 增值 小麦 100 — 面粉 120 面包 30 要求计算: (1)把空格填上。 (2)最终产品面包的价值是多少? (3)如果不区分中间产品与最终产品,按各个阶段的产值计算,总产值为多少? (4)在各个阶段上增值共为多少? (5)重复计算即中间产品成本为多少?
相关题目: