When does the question-and-answer session begin？
At 10 a.m.
B. At 5 p.m.
C. At 6 p.m.
D. At 8 p.m.
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Why should someone visit the The Illinois Arts Council web site？
A. To learn more about the lectures
B. To make reservations
C. To vote in online elections
D. To participate in online discussion
可焊性、切削性、铸造性与热处理性均属于工程材料的()性能。
A. 工艺
B. 力学
C. 化学
D. 物理
What does the word "capsule" in the passage possible mean？
A. medicine
B. crew
C. cabin
D. space station
对压力容器焊接工艺进行评定时，()要进行外观检查。
A. 角焊接
B. 对接焊缝
C. 环焊缝
D. 堆焊焊缝
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