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【简答题】
已知函数 （a为常数）在x=1处的切线的斜率为1． (1)求实数a的值，并求函数 的单调区间， (2)若不等式 ≥k在区间 上恒成立，其中e为自然对数的底数，求实数k的取值范围．
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【单选题】In this passage, what does the term 'coalescence' refer to?
A.
The gathering of small clouds to form. large clouds.
B.
The growth of droplets.
C.
The fall of raindrops and other precipitation.
D.
The movement of dust particles in the sunlight.
【判断题】Symbolic interactionism was developed to understand the operation of society from the ‘bottom up,’ shifting the focus to micro-level processes that emerge during face-to-face encounters in order to ex...
A.
正确
B.
错误
【单选题】What does the term TO NAVIGATE WITH CAUTION mean ().
A.
To navigate intentionally
B.
To navigate intensely
C.
To navigate carefully
D.
To navigate completely
【单选题】Which of the following best explain the implication of the last paragraph?
A.
Lincoln's greatness remains despite the passage of time.
B.
The memorial is symbolic of the great man's achievements.
C.
Each generation has its own interpretation of Lincoln.
D.
People get to know Lincoln through memorializers.
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