中央银行采取措施增加货币供应量，称为“收紧银根”。
参考答案：错
脊髓压迫症的主要症状有：___________、__________、__________、_________、______________、___________。
The meeting was just getting to the heart of the matter （） it's time to knock off.
A. while
B. when
C. until
D. after
