As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.
A.contact
B.appeal
C.exposure
D.contribution
答案:C
C [exposure to sth harmful“面临(有害物质),遭受”。]
As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.
A.contact
B.appeal
C.exposure
D.contribution
答案:C
C [exposure to sth harmful“面临(有害物质),遭受”。]