美国学者斯坦里·帕洛格将人类的心理进行分类,其中()特征是思想谨小慎微,多忧多虑,不爱冒险,喜好安逸轻松,活动量小,喜欢熟悉的环境和气氛
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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