(1)原式=42+92=132;
(2)原式=45+35-22-42=75-62.
Look, the man with his friends ________ at the pool.[ ]
A. swim
B. swims
C. is swimming
D. are swimming
晶状体混浊会引起()。
A.睑腺炎
B.青光眼
C.白内障
D.假性近视
E.睑板腺囊肿