A sudden, sharp decline in the value of securities is called_____.
A. a trade
B. speculation
C. investment
D. a crash
查看答案
what can be inferred from Paragraph 5？
A. Juliette liked the uniforms they Girl Guides wore.
B. Other people set up their own troops because of jealousy.
C. With Juliette's help, six Girl Guides troops were established.
D. The first troop was separated into six different troops.
Air pollution causes the most c-amage to_____.
A. hardwoods
B. conifers
C. fruit trees
D. fluorides
【B3】
A. illustration
B. show
C. way
D. sign
【B20】
A. access
B. channel
C. way
D. methods
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