()是在任何特定的时间,一国居民对非居民承担的已拨付尚未清偿的具有契约性偿还义务的全部债务,包括需要偿还的本金及需支付的利息。
A.外债
B.外资
C.外汇储备
D.外币
参考答案:A
在通常条件下,下列各组物质的性质排列不正确的是 [ ]
A.密度:苯<水<溴苯
B.沸点:戊烷>2-甲基丁烷>丙烷
C.与Na反应的速率:水>苯酚>乙醇
D.酸性:HCO3-<
It is the education _____ he received when studying abroad ______ has made him such an
excellent manager.[ ]
A. which, that
B. which, which
C. that, which
D. that, where