男,10岁,大腿下部酸痛、肿胀,结合图像,最可能的诊断是()
A.骨巨细胞瘤
B.骨样骨瘤
C.非骨化性纤维瘤
D.骨化性纤维瘤
E.纤维性骨皮质缺损
参考答案:C
Mary and Her Friends
Mary has some friends. They are Betty, Peter, Alice and Mike. Mary is the oldest of the five. Betty is thirteen years old. She is younger than Mary and older than Peter. Alice is nine and Mike is seven.
Betty and Peter are good runners( 长跑运动员 )。 But Peter runs faster. Mary and Betty like to play basketball. Mary plays better than Betty. Alice sings best of them.
Mary and Betty study in a middle school. Peter, Alice and Mike study in a primary ( 小学 ) school. They all work hard at school. But Betty works hardest. Her handwriting ( 书法 ) is good, too.
小题1:Mary has _______ friends.
A.four
B.five
C.six
D.three小题2:Mike is ______ than Alice.
A.youngest
B.oldest
C.younger
D.older小题3:Peter runs _______ than Betty.
A.faster
B.slow
C.fast
D.the fastest小题4:Betty’s handwriting is _______.
A.worst
B.good
C.better
D.best小题5:They all ______ .
A.study in the same school
B.like to play basketball
C.good runners
D.work hard
乘务员在上下车时应做到哪些注意事项?