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【多选题】
马克思的科学观认为科学知识的本质特征有A.
主体际性
B.
可检验性
C.
具体性
D.
正确性
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【单选题】Why does the woman want to make the purchase in that store?
A.
The article is cheap in the store.
B.
The article is of good quality in the store.
C.
The store is near her place.
D.
The store has free delivery service.
【单选题】why did the old woman walk into the store?
A.
because she wanted to take a rest
B.
because the store looked bright at night
C.
because she needed some food
D.
because the store was warmer than the outside.
【单选题】According to the passage, an active noise-cancellation system______.
A.
contains noise rather than negates it
B.
eliminates noise rather than muffles it
C.
deflects noise rather than baffles it
D.
holds noise hack rather than stifles it
【简答题】某海港属半日潮港，当地理论深度基准面在黄海平均海平面下1.35m，以黄海平均海平面为基准测得进港航道水深为-12.90m，新建件杂货码头的船舶设计吃水为13.00m（含富裕水深等因素）。什么叫半日潮？其特征是什么？
【单选题】Why would the Hatches routinely go from store to store?
A.
They decided to open a store
B.
They wanted to save money
C.
They couldn’t afford expensive things
D.
They wanted to buy gifts for local kids
【简答题】学习小组对某品牌牙膏中摩擦剂成分及其含量进行以下探究： 查得资料： 该牙膏摩擦剂由碳酸钙、氢氧化铝组成；牙膏中其它成分遇到盐酸时无气体生成。 Ⅰ．摩擦剂中氢氧化铝的定性检验： 取适量牙膏样品，加水搅拌、过滤。 （1）往滤渣中加入过量NaOH溶液，过滤。氢氧化铝与NaOH溶液反应的离子方程式是______________。 （2）往（1）所得滤液中先通入过量二氧化碳，再加入过量稀盐酸。观察到的现象是...
【简答题】Why does the woman want to make the purchase in that store? [A] The article is cheap in the store. [B] The article is of good quality in the store. [C] The store is near her place. [D] The store has f...
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