题目内容

An occluded front on a weather map is colored（）.

A. blue line
B. purple line
C. dashed blue line
D. alternate red and blue line

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If the gas pressure behind the ring is built up too slowly, and thereby exerts an inadequate outward pressureIn such a case, the combustion gas can penetrate between the liner and ring, and violently force the ring inwards, in the grooveWhat result will this type of sudden "shock" loading eventually lead to?（）

A. micro-seizure
B. scratch
C. break
D. stick

下列属于经营管理者行为约束机制中内部约束的是（）

A. 法律约束
B. 市场机制约束
C. 公司章程约束
D. 合同约束
E. 组织机构约束

堆载预压填筑过程中应同步进行地基沉降与土的（）观测。

A. 侧向位移观测
B. 偏压
C. 含水率

慢性化脓性中耳炎耳流脓突然减少或增多，伴头痛、发热、白细胞增多等，应考虑（）的发生。