白令海海流和来自北冰洋经白令海峡流出的沿亚洲大陆东岸向南流的海流称道为。
A. 黑潮
B. 亲潮
C. 阿留申海流
D. 堪察加海流
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An LWT anchor often has difficulty tripping in ______.
A. Sand
B. Soft soil
C. Stiff clay
D. Heterogeneous soil
锋面雾产生的典型部位是。
A. 暖锋前
B. 暖锋后
C. 第一型冷锋前
D. 第二型冷锋后
Which pump must always be primed ________.
A. Centrifugal pump
B. Reciprocating pump
C. Rotary pump
D. All of the above
艺术体验就是直接参与某种艺术创作活动,感受或表达某种情感。()