Unlike other annelids, echiurans ( ).
A: have an open circulatory system
B: do not possess setae
C: undergo radial cleavage
D: are not segmented
E: have enterocoelous coelom formation
A: have an open circulatory system
B: do not possess setae
C: undergo radial cleavage
D: are not segmented
E: have enterocoelous coelom formation
举一反三
- Privacy is the right ________ themselves in your personal affairs, providing your affairs do not harm anyone else. A: not to have other people involving B: to not have other people involving C: to have not other people to involve D: not to have other people involved
- We are very sad to have to do this, but there is no other ______.
- Do you have no other clothes except those?（ ）
- Do you have any licenses of other special qualifications?
- If you have , you have the ability to decide what to do next and to do it, without needing other people to tell you what to do.