问题
选择题
26．The chemical weapons by the Japanese troops are the chief cause of the constant poisoning accidents.
A．Were abandoned
B．abandoned
C．had abandoned
D．abandoning
答案
答案：B
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26．The chemical weapons by the Japanese troops are the chief cause of the constant poisoning accidents.
A．Were abandoned
B．abandoned
C．had abandoned
D．abandoning
答案：B
vBl
vBl