砂带磨光机适用于木制品表面的修整抛光、砂光、擦扫等。
参考答案:错
临床上最早出现的、比较确切的糖尿病性视网膜病变(如图)的体征是()
A.微动脉瘤
B.硬性渗出
C.视网膜内出血
D.视网膜水肿
E.新生血管形成
.
. His family, which _______ rather a large one, ______very fond of their old house.
A.were, were
B.was, were
C.were, was
D.was, was