首页
登录
职称英语
【B1】 [br] 【B11】 [originaltext] It’s never too early to save your skin—or your
【B1】 [br] 【B11】 [originaltext] It’s never too early to save your skin—or your
游客
2023-08-01
49
管理
问题
【B1】 [br] 【B11】
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
the higher the SPF,the greater the protection against harmful sun rays
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2889016.html
相关试题推荐
[originaltext]Smartphonesdistractattentionandreducelearningbecauseof
[originaltext]Goodafternoon.Intoday’slecture,we’llbetalkingaboutho
[originaltext]Goodafternoon.Intoday’slecture,we’llbetalkingaboutho
[originaltext]InAmerica,mostresearchersconcedethatboysandgirlsare
[originaltext]InAmerica,mostresearchersconcedethatboysandgirlsare
[originaltext]InAmerica,mostresearchersconcedethatboysandgirlsare
[originaltext]Everyoneissupposedtocheerforgoodguys,andweshouldon
[originaltext]Anewstudyhasfoundapositivecorrelationbetweenhowmuch
[originaltext]M:Hi,there!I’vecometoseetheflat.MynameisMarkAdams.W
[originaltext]M:Hi,there!I’vecometoseetheflat.MynameisMarkAdams.W
随机试题
[originaltext]W:Wouldyoucallataxitotakemetotheairport?M:Callata
某种疾病的病死率指()A.该病的死亡专率 B.该疾病的死亡结果 C.该病死亡
下列风险分析方法中,不属于专家调查法的是( )。(2016年真题)A:头脑风暴法
混凝土静压弹性模量试验需制作()个试件。A:3 B:6 C:9 D:12
下列关于协方差和相关系数的说法中,正确的有()。A.如果协方差大于0,则相关系数
(2019年真题)下列属于金融债券发行方式的有()。A.间接公募,即发行人委托
常用来测定DNA溶液浓度的波长是()A.260nmB.280nmC.370nm
共用题干 患者,男性,28岁,左胸外伤后肋骨骨折,出现极度呼吸困难,发绀,烦躁
2000年至2005年,我国农村发电量占用电量比重最大的年份是()。A.
2020年8月20日,A公司向B公司签发了一张金额为10万元的商业汇票,该汇票载
最新回复
(
0
)