【单选题】按辐射波长由长到短的排列,正确的是 [ ]
【单选题】What did Stephen's mother do when she came into the kitchen?
A.
She gave him a long lecture.
B.
She shouted at him in anger.
C.
She enjoyed the wonderful mess.
D.
She cleaned up the mess with him.
【单选题】果蝇的体细胞中有四对同源染色体,它的一个初级精母细胞经过减数分裂后形成了几种类型的精子 [ ]
【单选题】What did Stephen’s mother teach him later?
A.
How to do an experiment
B.
How to clean up spilled milk
C.
How to carry a milk bottle
【判断题】躁狂症状必须持续存在 1 周以上,才考虑躁狂症的诊断。
【单选题】What did Stephen's mother teach him later?
A.
How to do an experiment.
B.
How to carry a milk bottle.
C.
How to clean up spilled milk.
D.
How to avoid mistakes.