The patient had appendectomy(阑尾切除术),_______means surgical removal of theappendix.
A.it
B.that
C. when
D.which
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Having fully recovered after three months' stay in the ENT ward, he was______ the hospital.
A.sent into
B.charge
C.freed from
D.discharged from
Anything________is invisible to the naked eye is said to be microscopic(微小的).
A. which
B. that
C. who
D. It
It's just a(n)______medical examination, nothing to worry about.
A.routine
B.unusual
C. objective
D. subjective
以下哪个是踢脚线的样式?
A. 外凸
B. 平
C. 内凹
D. 都不是