更多"[单选题]更易转变为恶性黑素瘤的是"的相关试题:
[不定项选择题]共用题干
Skin Cancer
Melanoma（黑素瘤）,the deadliest kind of skin cancer,is now the most common cancer in__________(51)
British women,the country's leading cancer organization said Wednesday.Skin cancer has__________(52)
cervical（子宫颈的）cancer as the top cancer striking women in their 20s,according to the latest data from
Cancer Research United Kingdom.
The trend is particularly_________(53)since younger people are not generally those most susceptible
（易患的）to melanoma. Rates of skin cancer are _________( 54 ) highest in people over age 75.
But experts worry that increasing numbers of younger people being diagnosed with skin cancer could be
the_________(55)of a dangerous trend.Women in their 20s make_________(56)a small percentage of all
patients diagnosed with melanoma in Britain,but nearly a third of all cases occur in people younger than 50.
Based on current numbers,Cancer Research UK predicts that melanoma will become the fourth
_________(57)common cancer for men and women of all ages by 2024,and that cases will jump from about
9,000 a year to more than 15,500.
Cancer experts_________(58)the rising number of skin cancer cases largely to the surge in people
using tanning salons."Spending time on sun beds is just as_________(59)as staying out too long in the
sun,"said Caroline Cerny of Cancer Research UK. The organization is starting a SunSmart_________(60)to
warn Britons of the dangers of being too bronzed.
"The intensity of ultraviolet rays in some sun beds can be more than 10_________(61)stronger than the
mid-day sun,"Cerny said.
In the United States,several states require parental approval________(62)minors can use tanning
salons.Wisconsin bans people 16 and________(63)from using tanning beds,and others ban children under
14.At least 29 states have regulations governing minors'use of tanning salons.
In the U.K.,Scottish politicians passed legislation banning those under 1 8 from using tanning beds,
though it hasn't yet been implemented.There are no plans for________(64)in the rest of the U.K.
The World Health Organization has previously recommended that tanning beds be regulated because of
their potential to damage DNA in the skin.
Experts said most deadly skin cancers could be________(65)if people took the proper precautions
when in the sun and avoided tanning beds.
_________(65)
A.avoided
B.diagnosed
C.predicted
D.treated
[判断题]柴油机能量转换的实质是将柴油的化学能转变为热能，再将热能转变为机械能。（ ）
A.正确
B.错误
[单选题]单核细胞可转变为
A.凝血酶原
B.碱性蛋白质
C.网织红细胞
D.吞噬细胞
E.淋巴细胞
