标准参照测验的定量标准是【 】
以评价的参照标准为依据可将教学评价分为哪几类?并结合教学实践举例说明。
Goods are carried by several of transport--on road or rail, by sea or air.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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