中国大学MOOC: Penicillin was discovered by accident in the summer of 1928.
错
举一反三
- Like<br/>some other discoveries, Penicillin was discovered quite( ) A: by accident B: in event C: at incident D: as accent
- 中国大学MOOC: Who discovered X-rays?
- 中国大学MOOC: It was believed that America was first discovered by ____________.
- 中国大学MOOC: was believed to have discovered America.
- 中国大学MOOC: The Terracotta Warriors were discovered when ________.
内容
- 0
中国大学MOOC: Which of the following is not included in the Summer Palace?
- 1
中国大学MOOC: With time_____,we will visit the Summer Palace.
- 2
中国大学MOOC: All summer long they waited for the harvests with great __________.
- 3
中国大学MOOC: high summer是“盛夏”的意思。
- 4
中国大学MOOC: After the accident, they just pretended that nothing was _______ and left quietly.