有关细菌的形态,说法不正确的是( )
A.卵形
B.杆形
C.球形
D.螺旋形
细菌的基本形态有球状、杆状和螺旋状,如图;
据此细菌可分为球菌、杆菌和螺旋菌.
故选:A
某链状有机物的分子式为C4H8O2,且能与NaOH溶液反应,则该有机物的同分异构体共有(不考虑立体异构) [ ]
A.3
B.4
C.5
D.6
People have to _________ lots of hardship before they succeed.
A.put up
B.come to terms with
C.enjoy
D.do with