空 请找出下列句子中需要首字母大写的单词并将正确答案填入空中。My favorite part of last summer’s journey was the east coast.
填空 请找出下列句子中需要首字母大写的单词并将正确答案填入空中。Just as an alarm started ringing, Cindy came out of the building shouting, “help! There’s a fire in the barn!”
填空 请找出下列句子中需要首字母大写的单词并将正确答案填入空中。Did you know that your dad invited aunt Lori to come to visit us?
1988年美国人斯科特克伦普(Scott Crump)发明了下面哪种3D打印工艺?
A. FDM
B. SLA
C. SLS
D. ABS