用于测量病毒大小的单位是()。
A.纳米(nm)
B.微米(μm)
C.毫米(mm)
D.厘米(cm)
E.米(m)
参考答案:A
深圳证券交易所的配股认购于( )开始,认购期为5个工作日。
A.R日
B.R+1日
C.R+2日
D.R+3日
— She sold her treasures to cure her mother’s illness, even though it was
her own wishes.
— It’s so kind _____ her.
A.against; of
B.above; of
C.on; for
D.for; for