报警阀组宜设在安全及易于操作的地点，报警阀距地面的高度宜在（）m。
A. 0.8
B. 1
C. 1.2
D. 1.6
查看答案
The Lewis and Clark expedition______the territory of the Louisiana Purchase and beyond as
A. located
B. searched
C. exploited
D. developed
What is the meaning of "the fellows of the ink-pots"？
A. People who follow Theodore Dreiser.
B. People who like Theodore Dreiser.
C. People who write.
D. People who write prose.
This passage is to ______.
A. criticize Theodore Dreiser
B. praise Theodore Dreiser
C. defend Theodore Dreiser
D. ridicule Theodore Dreiser
What can you infer from the passage？
A. Dreiser had no sense of humor.
B. Dreiser lived a hard life throughout his life.
C. Dreiser paved a way for the younger writers in America.
D. Both Ａ ＆ Ｂ.
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