A: Iron casting technology has already been employed in Qin (220 to 205 BC) and Han dynasties (206 –220 BC).
B: Iron casting technology has already been employed in Qin (221 to 207 BC) and Han dynasties (236 –210 BC).
C: Iron casting technology has already been employed in Qin (221 to 207 BC) and Han dynasties (202 –220 BC).
D: Iron casting technology has already been employed in Qin (221 to 207 BC) and Han dynasties (201 –227 BC).
举一反三
- Later in 221 BC, ____________ , Emperor of the Qin Dynasty, conquered all the states and unified China.
- Buddhism was introduced to China: A: in the 6th century BC B: in the Qin Dynasty C: in the Three Kingdoms Period D: from the end of the warring states to the end of western Han dynasty
- 69. Mr. Brown ____ here for two weeks. A: has already been B: is already being C: has already been being D: is already
- A cost that has already been paid, or the liability to pay has already been incurred, is a(n):
- The origins of Chinese traditional festivals can be traced far back to ________. A: The Shang and Zhou dynasties B: Han dynasty C: Qin dynasty D: Tang dynasty
内容
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Please give details of the grant that ______ to you for your proposed study. A: has already been awarded B: has already awarded C: had already been awarded D: had already awarded
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This changed during the Han dynasties when the sickle underwent changes and developed into zhi and ai. Archaeological findings indicated that the iron sickle was in existence during the Warring States Period.（ ）
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Gray cast iron has () A: high compressive strength B: excellent machinability C: good casting characteristic D: all of these
- 3
He has already been to Shanghai , has he A: already B: neve C: eve D: still
- 4
Which of the following are true about Xiang Yu? A: a prominent military leader and political figure during the late Qin Dynasty. B: In 207 BC, Xiang Yu led the Chu rebel forces to Victory at the Battle of Julu(巨鹿之战) against the Qin armies. C: After the fall of the Qin Dynasty, Xiang Yu proclaimed himself＂ Hegemon- King of Western Chu＂(西楚霸王)and ruled a vast area of land. D: He engaged Liu Bang, in a long struggle for power, known as the Chu- Han Contention(楚汉之争).