赞题库-背景图

单项选择题

Which of the following words best describes the tone of this passage

A．Argumentative.
B．Imaginative.
C．Objective.
D．Negative.

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热门试题

单项选择题What does CBW' represent

A．Casualties Blood War.
B．Conventional Blood War.
C．Coneern Bomb Weapon.
D．Chemical and Biological Weapons.

单项选择题What is the main topic of this passage

A．The history of chemical and biological weapons.
B．Terrorists and chemical and biological weapons.
C．Conventional and unconventional wars.
D．The use of chemical and biological weapons.