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1
鏌愯川鐐圭殑杩愬姩瀛︽柟绋?/p>
x=6+3t-5t
3
锛屽垯璇ヨ川鐐逛綔
锛?/p>
D
锛?/p>
锛?/p>
A
锛夊寑鍔犻�熺洿绾胯繍鍔紝鍔犻�熷害涓烘鍊?/p>
锛?/p>
B
锛夊寑鍔犻�熺洿绾胯繍鍔紝鍔犻�熷害涓鸿礋鍊?/p>
锛?/p>
C
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锛?/p>
D
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2
涓�浣滅洿绾胯繍鍔ㄧ殑鐗╀綋锛屽叾閫熷害
x
v
涓庢椂闂?/p>
t
鐨勫叧绯绘洸绾垮鍥剧ず銆傝
2
1
t
t
飩?/p>
鏃堕棿鍐呭悎鍔涗綔鍔?/p>
涓?/p>
A
1
锛?/p>
3
2
t
t
飩?/p>
鏃堕棿鍐呭悎鍔涗綔鍔熶负
A
2
锛?/p>
4
3
t
t
飩?/p>
鏃堕棿鍐呭悎鍔涗綔鍔熶负
A
3
锛?/p>
鍒欎笅杩版纭兘涓?/p>
锛?/p>
C
锛?/p>
锛?/p>
A
锛?/p>
0
1
飪?/p>
A
锛?/p>
0
2
飪?/p>
A
锛?/p>
0
3
飪?/p>
A
锛?/p>
B
锛?/p>
0
1
飪?/p>
A
锛?/p>
0
2
飪?/p>
A
锛?/p>
0
3
飪?/p>
A
锛?/p>
C
锛?/p>
0
1
飥?/p>
A
锛?/p>
0
2
飪?/p>
A
锛?/p>
0
3
飪?/p>
A
锛?/p>
D
锛?/p>
0
1
飥?/p>
A
锛?/p>
0
2
飪?/p>
A
锛?/p>
0
3
飪?/p>
A
3
鍏充簬闈欐懇鎿﹀姏浣滃姛锛屾寚鍑轰笅杩版纭�咃紙
C
锛?/p>
锛?/p>
A
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锛?/p>
B
锛夊彈闈欐懇鎿﹀姏浣滅敤鐨勭墿浣撳繀瀹氶潤姝€�?/p>
锛?/p>
C
锛夊郊姝や互闈欐懇鎿﹀姏浣滅敤鐨勪袱涓墿浣撳浜庣浉瀵归潤姝㈢姸鎬侊紝鎵�浠ヤ袱涓潤鎽╂摝鍔涗綔鍔熶箣鍜岀瓑浜?/p>
闆躲�?/p>
4
璐ㄧ偣娌垮崐寰勪负
R
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T
杞姩涓�鍦堬紝閭ｄ箞鍦?/p>
2T
鐨勬椂闂村唴锛屽叾骞?/p>
鍧囬�熷害鐨勫ぇ灏忓拰骞冲潎閫熺巼鍒嗗埆涓猴紙
B
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A
锛?/p>
锛?/p>
锛?/p>
B
锛?/p>
0
锛?/p>
锛?/p>
C
锛?/p>
0
锛?/p>
0
锛?/p>
D
锛?
T
R
飦?/p>
2
锛?/p>
0
5
銆佽川鐐瑰湪鎭掑姏
F
飦?
浣滅敤涓嬬敱闈欐寮�濮嬩綔鐩寸嚎杩愬姩銆傚凡鐭ュ湪鏃堕棿
1
t
飦?/p>
鍐咃紝閫熺巼鐢?/p>
0
澧炲姞鍒?/p>
飦?/p>
锛?
鍦?/p>
2
t
飦?/p>
鍐咃紝鐢?/p>
飦?/p>
澧炲姞鍒?/p>
飦?/p>
2
銆傝璇ュ姏鍦?/p>
1
t
飦?/p>
鍐咃紝鍐查噺澶у皬涓?/p>
1
I
锛屾墍浣滅殑鍔熶负
1
A
锛涘湪
2
t
飦?/p>
鍐咃紝
鍐查噺澶у皬涓?/p>
2
I
锛屾墍浣滅殑鍔熶负
2
A
锛屽垯锛?/p>
D
锛?/p>
A
锛?/p>
2
1
2
1
;
I
I
A
A
飥?/p>
飥?/p>
B.
2
1
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1
;
I
I
A
A
飥?/p>
飥?/p>
C.
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A
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D.
2
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A
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飥?/p>
6
濡傚浘绀轰袱涓川閲忓垎鍒负
B
A
m
m
鍜?/p>
鐨勭墿浣?/p>
A
鍜?/p>
B
涓�璧峰湪姘村钩闈笂娌?/p>
x
杞存鍚戜綔鍖�鍑忛�熺洿
绾胯繍鍔紝鍔犻�熷害澶у皬涓?/p>
a
锛?/p>
A
涓?/p>
B
闂寸殑鏈�澶ч潤鎽╂摝绯绘暟涓?/p>
飦?/p>
锛屽垯
A
浣滅敤浜?/p>
B
鐨勯潤鎽╂摝鍔?/p>
F
鐨勫ぇ灏忓拰鏂瑰悜鍒嗗埆涓猴紙
D
锛?/p>
杞存鍚戠浉鍙?
涓?/p>
銆?/p>
杞存鍚戠浉鍚?/p>
涓?/p>
銆?/p>
杞存鍚戠浉鍚?/p>
涓?/p>
銆?/p>
杞存鍚戠浉鍙?/p>
涓?/p>
銆?/p>
x
a
m
D
x
a
m
x
g
m
x
g
m
B
B
B
B
,
,
C
,
B
,
A
飦?/p>
飦?/p>
T
R
飦?/p>
2
T
R
飦?/p>
2
T
R
飦?/p>
2
u
t
o
t
1