you can't imagine that rats eat 40 to 50 times _____.A.in weight B.by weight C.of weight D.thier weight为什么选D，thier weight之前为什么不加介词

you can't imagine that rats eat 40 to 50 times _____.A.in weight B.by weight C.of weight D.thier weight为什么选D，thier weight之前为什么不加介词
you can't imagine that rats eat 40 to 50 times _____.
A.in weight
B.by weight
C.of weight
D.thier weight
为什么选D，thier weight之前为什么不加介词

you can't imagine that rats eat 40 to 50 times _____.A.in weight B.by weight C.of weight D.thier weight为什么选D，thier weight之前为什么不加介词
D
因为THEIR是形容词性物主代词,前无须介词连接

Their weight

D.their weight