So far scientists have only acquired ________ understanding of the physical processes that cause earthquakes.
A
A不完全的、部分的B易变的、可变的C原先的、最初的D个人的、个别的
名词解释：preferredstock
Importswillbeallowedinproportion_______exports.
TheFrenchmaintaina________separationofpersonalandprofessionallife.
Hedeclined_______moreaboutit.
名词解释：offer