Try to ________ half an hour each day for keeping a diary, and you'll achieve distinction in writing.
A:take up
B:set aside
C:put away
D:make out
关于单细胞生物的下列叙述中,错误的是( )
人是二倍体生物,含46条染色体,性别决定为XY型,即XX表现为女性,XY表现为男性.