第1题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第2题
A、wind, rain
B、weathering, fire
C、rain, fire
D、fire, flood
第3题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第4题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第5题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第6题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第7题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第8题
Gunpowder was used extensively in firearms prior to 1990.
A.in
B.around
C.from
D.before
第9题
Gunpowder was used extensively in firearms prior to 1990.()
A.in
B.around
C.from
D.before
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