皮皮学,免费搜题
登录
搜题
【单选题】
关于Python的元组类型,以下选项中描述错误的是
A.
元组一旦创建就不能被修改
B.
元组中元素不可以是不同类型
C.
一个元组可以作为另一个元组的元素,可以采用多级索引获取信息
D.
Python 中元组采用逗号和圆括号(可选)来表示
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】已知 H 3 PO 4 的 pK a1 ,pK a2 ,pK a3 分别为 2.12,7.20,12.36,则 PO 4 3- 的 pK b1 为( )。
A.
11.88
B.
6.8
C.
1.64
D.
2.12
【单选题】You may find it _______ that Charlie was taught to sing as soon as he could speak.
A.
astonishing
B.
astonished
C.
to be astonished
D.
to be astonishing
【简答题】People may sing or dance with their friends there.
【简答题】企业财务管理活动有那几个项目?
【单选题】He doesn't like _____, but he enjoys _____. [     ]
A.
sing, dance
B.
to sing, to dance
C.
singing, to dance
D.
to sing, dancing
【单选题】— Can you sing a song in English? — No, I ________________. [     ]
A.
may not
B.
mustn't
C.
needn't
D.
can't
【单选题】The girl _____________ very well. [     ]
A.
don't sing
B.
doesn't sing
C.
isn't sing
【单选题】测定熔点在80°C以下固体药物熔点时,可选用下列哪种物质做传温液( A )
A.
B.
硅酮
C.
液体石蜡
D.
乙醇
E.
丙酮
【单选题】测定熔点在80°C以下固体药物熔点时,可选用下列哪种物质做传温液()
A.
B.
硅酮
C.
液体石蜡
D.
乙醇
E.
丙酮
【单选题】“Can you sing the song in English?” “No , I _________” [     ]
A.
may not
B.
mustn’t
C.
needn’t
D.
can’t
相关题目: