单项选择题

What was the most probable cause of the air crash

A．Mechanical Failure
B．Marijuana burning
C．Destroyed by gunfire.
D．Heavy fog
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单项选择题
The casualties for the rival Muslin militias were ______.
A．three
B．twenty
C．ninety-four
D．ninety-seven
单项选择题
hat is the percentage of the sugar used as food
A．19%.
B．90%.
C．10%.
D．30%.
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