从温度带上看，黄土高原属________带，农作物耕作制度是____________。
暖温；二年三熟
My brother would like to buy a good watch but was available from that shop.
A．nothing
B．none
C．no one
D．neither
患者，男，61岁。上颌缺失，其余牙基本正常。欲行活动义齿修复。
侧腭杆与相邻牙龈的距离为（）。
A.5mm
B.1mm
C.4mm
D.2mm
E.3mm
缺失，其余牙基本正常。欲行活动义齿修复。