Do you think driverless technology will make many workers lose _______ jobs?
A:them
B:their
C:theirs
____
长方体ABCD﹣A1B1C1D1中,若A1C与平面AB1D1相交于点M,则 A1MA1C =____.
根据拼音写汉字。
qián
xiá
jǐn
yàn
____藏
管____
花团____簇
不____其烦