首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
It’s never too early to 【B1】______ your skin—or your children’s from the sun. The sun produces 【B2】______ rays 【B3】______ A(UVA)
It’s never too early to 【B1】______ your skin—or your children’s from the sun. The sun produces 【B2】______ rays 【B3】______ A(UVA)
admin
2009-04-23
51
问题
It’s never too early to 【B1】______ your skin—or your children’s from the sun. The sun produces 【B2】______ rays 【B3】______ A(UVA) and ultraviolet B(UVB)—that can cause short- and long-term skin damage.
The immediate effects of harmful 【B4】______—【B5】______. photosensitive 【B6】______, and cell and 【B7】______ damage—are bad enough. But 【B8】______ experts believe that 【B9】____________. Health experts also believe that UVA may weaken the immune system. 【B10】____________. Using sunscreens regularly on children, for example, can reduce their risk of skin damage later in life.
Sunscreens provide some protection by blocking the sun’s rays on the skin. They are labeled with a sun protection factor(SPF): 【B11】____________. But no sunscreen totally blocks the sun’s rays.
It’s never too early to save your skin—or your children’s from the sun. The sun produces invisible rays ultraviolet A(UVA) and ultraviolet B(UVB)—that can cause short- and long-term skin damage.
The immediate effects of harmful sunrays—sunburn, photosensitive reactions, and cell and tissue dam age-are bad enough. But medical experts believe that too much exposure to the sun in childhood or the sun in adolescence is a major cause of skin cancer and premature skin aging later in life. Health experts also believe that UVA may weaken the immune sys tem.
You can take steps early and often to minimize the sun’s harmful effects. Using sunscreens regularly on children, for example, can reduce their risk of skin damage later in life.
Sunscreens provide some protection by blocking the sun’s rays on the skin. They are labeled with a sun protection factor(SPF): the higher the SPF, the greater the protection against harmful sun rays. But no sunacreen totally blocks the sun’s rays.
选项
答案
save
解析
转载请注明原文地址:https://kaotiyun.com/show/cE37777K
0
大学英语四级
相关试题推荐
Afteryearsofdithering(徘徊犹豫),Americaissetforpatentreform.OnSeptember6thabillproposingtochangethesystempassed
Forthispart,youareallowed30minutestowriteashortessayonyoungpeopleparticipatinginTVshows.Youressayshouldin
A、Heisaneconomist.B、Hedidanexperimentwithstockexchangeprices.C、HisexperimenthasnothingtodowithChaostheory.D
A、Improvecomputerprogramming.B、Explaincertainnaturalphenomena.C、Predictglobalpopulationgrowth.D、Promotenationalfina
Mostofusexperiencefalsealarmswithphones,becauseitisacommonandunavoidablepartofhealthybrainfunction.Sensi
WhatIfYouCouldLearnEverythingA)Imagineeverystudenthasatirelesspersonaltutor,anartificiallyintelligentandi
Theintimaterelationshipbetweenspeakersandtheirspeechhasledsomescholarstosuggestthatlanguagedeterminesthevieww
Thegoodnewsisthattoday’steenagersare【C1】________readersandprolific(多产的)writers.Thebadnewsisthatwhattheyarere
Formanypeople,onmanyoccasions,foodisatrouble,especiallywhentryingtoeatwell.Supposewehadadefaultmealthatwa
A、Itseriouslyimpactstheirphysicalandmentaldevelopment.B、Ithasbecomeaproblemaffectingglobaleconomicgrowth.C、Iti
随机试题
A.透明带B.卵泡液C.放射冠D.颗粒层为紧靠透明带的一层卵泡细胞()
失荣初期的用方为失荣后期的用方为
具错入组织的果实种子类中药材是
高某的行为是否构成犯罪?为什么?刘某的行为是否构成犯罪?为什么?
沥青路面的垫层是设置在底基层与土基之间的结构层,起()等作用。
先将重量、质地和颜色完全相同的两块球形橡皮泥给幼儿进行重量比较,然后当着幼儿的面把其中的一块压成扁平状,这时,幼儿可能会认为球形的橡皮泥比压成扁平状的橡皮泥更重些。这说明幼儿的思维具有()。
下列关于侵权责任的说法错误的是()。
公文写作中,论据就是用来说明论点的根据,有事实论据和理论论据之分,其中理论论据是指()等。
根据以下资料。回答下列问题。2013年1—6月份,我国商品房销售面积51433万平方米,同比增长28.7%,增速比1—5月份回落6.9个百分点;其中,住宅销售面积增长30.4%,办公楼销售面积增长31.7%,商业营业用房销售面积增长8.3%。商品房销售额
Culturereferstothesocialheritageofapeople—thelearnedpatternsforthinking,feelingandactingthatcharacterizea
最新回复
(
0
)