问题
解答题
张师傅某天的营运全是在南北走向的沿河大道上进行的，如果规定向南为正，向北为负，他这一天的行车里程（千米）如下：
+16 -5 +20 -4 +6 -35 +11 -18
若汽车耗油量为a升/千米，则这天汽车耗油多少升？
答案
（16+5+20+4+6+35+11+18）×a=115a（升）
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张师傅某天的营运全是在南北走向的沿河大道上进行的，如果规定向南为正，向北为负，他这一天的行车里程（千米）如下：
+16 -5 +20 -4 +6 -35 +11 -18
若汽车耗油量为a升/千米，则这天汽车耗油多少升？
（16+5+20+4+6+35+11+18）×a=115a（升）
| Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (51) to how they can best adapt them selves to such changes. Growing bodies need movement and (52) , but not just in ways that emphasize competition. (53) they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (54) that comes from achieving success and knowing that their accomplishments are (55) by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (56) to plan activities in which there are more winners than losers, for example, publishing newsletters with many student-written book reviews, (57) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide (58) opportunities for leadership, as well as for practice in successful (59) dynamics. Making friends is extremely important to teenagers, and many shy students need the (60) of some kind of organization with a supportive adult barely visible in the background. |
A．care
B．nutrition
C．exercise
D．leisure