With the appearance of _____ in 1855, which is about American Indians, Longfellow’s poetic reputation was established（）
A. The Courtship of Miles Standish
B. Song of Hiawatha
C. Michael Angelo
D. Evangeline
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常用的软件体系结构建模工具是（）
A. JAVA开发工具
B. Visual Studio 2019开发工具
C. ArchStudio开发工具
D. UML开发工具
建立文件add.py，写入以下代码： print（“the first number is:”） print（30+50） print（“the second number is:”） 30*50保存并运行脚本文件，输出结果为（）
A. the first number is:80the second number is:150
B. the first number is: 80the second number is: 150
C. the first number is:80the second number is:1500
D. the first number is:80the second number is
下面安装包的命令中，错误的是：______（）
A. conda install tensorflow=2.0.0 beta
B. conda install tensorflow==1.14.0
C. pip install tensorflow=2.0.0 alpha
D. pip install tensorflow==2.0
Which of the following item matters most to a public speaker（）
A. Pronunciation
B. Language proficiency
Critical thinking skill
D. Inherent talent
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