【名词&注释】
减数分裂(meiosis)、有丝分裂(mitosis)、放射性(radioactivity)、纺锤体、二类精神药品、麻醉药品和一类精神药品、可储存(storable)、圆柱状
[单选题]所有的柔荑花序一概为( )。
A. 花轴柔软下垂
B. 花无花被
C. 花单性
D. 花完全无柄
E. A和B
查看答案&解析
举一反三：
[多选题]有丝分裂和减数分裂共同具有的主要特点是
A. 核膜消失
B. 出现纺锤体
C. 出现染色体
D. 细胞只分裂一次
[单选题]Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almost three times the number hired last year, reduce unemployment pressures.
A. help
B. to have helped
C. to help
D. having helped
[单选题]关于特殊管理药品的储存管理叙述错误的是（ ）。
A. 麻醉药品和一类精神药品可存放在同一专用库房
B. 二类精神药品可储存(storable)在普通药品库房
C. 麻醉药品和二类精神药品可合存放在同一专用库房
D. 毒性药品实行专库(柜)加锁保管
E. 放射性药品实行专库(柜)双人双锁保管
[单选题]What clis the hor tell us in the 3rd passgiaph?
A. Children need their parents’letters.
B. Children are afraid to be disappointcd.
C. His children’s fear of failure held them back.
D. His father’s letter removed his fear of failing his parents.
[多选题]下列植物的花托各呈什么形状?木兰( )、草莓( )、桃( )。
A. 圆柱状
B. 中央凹陷呈碗状
C. 覆碗状
D. 盘状
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