The parachutelike membranes of Africa's scaly-tailed flying squirrels differ from those of the flying squirrels in the family Sciuridae because they are attached to a cartilage rod at the elbow instead of the wrist.
The parachutelike membranes of Africa's scaly-tailed flying squirrels differ from those of the flying squirrels in the family Sciuridae because they are attached to a cartilage rod at the elbow instead of the wrist.
(A) because they are attached to a cartilage rod at the elbow instead of (B) because of being attached to a cartilage rod at the elbow rather than at (C) in their attachment to a cartilage rod at the elbow instead of being attached at (D) in that they are attached to a cartilage rod at the elbow rather than at (E) in their being attached to a cartilage rod at the elbow instead of
umm..不可以... because有強烈的因果關係. 由因導致果 如果選A加at, 那意思就不對: they are attached to a cartilage rod at the elbow instead of at the wrist導致The parachutelike membranes of Africa's scaly-tailed flying squirrels differ from those of the flying squirrels in the family Sciuridae.