L-型细菌说法正确的是( )。
A. 能变形通过细菌滤器。
B. 细胞膨大,对渗透压敏感,有些可重新合成细胞壁。
C. 可以生长繁殖,可人工培养形成油煎蛋形菌落。
D. 是遗传性稳定的细胞壁缺损细菌,具多形性。
E. 由英国学者李斯特(Lister)发现,故称为L-型细菌
F. G+细菌,对渗透压敏感
We're talking about the pianist ______ will visit our school next week.
A. which
B. who
C. whom
D. that
It will take _____ hour and _____half to finish______ work.
A. an, a, the
B. a, a, the
C. an, a, /
D. a, an, the
This is the same girl _____ came to borrow an English book two days ago.
A. who
B. which
C. what
D. that