2019
骞撮珮涓暟瀛﹀崟鍏冩祴璇曡瘯棰?/p>
瑙ｄ笁瑙掑舰涓撻锛堝惈绛?
妗堬級
瀛︽牎锛?/p>
__________
濮撳悕锛?/p>
__________
鐝骇锛?/p>
__________
鑰冨彿锛?/p>
__________
棰樺彿
涓�
浜?/p>
涓?/p>
鎬诲垎
寰楀垎
绗?/p>
I
鍗凤紙閫夋嫨棰橈級
璇风偣鍑讳慨鏀圭
I
鍗风殑鏂囧瓧璇存槑
涓�銆侀�夋嫨棰?/p>
1
锛?/p>
濡?/p>
鍥?/p>
,
姝?/p>
鏂?/p>
褰?/p>
ABCD
鐨?/p>
杈?/p>
闀?/p>
涓?/p>
1
,
寤?/p>
闀?/p>
BA
鑷?/p>
E
,
浣?/p>
1
AE
飥?/p>
,
杩?/p>
鎺?/p>
EC
銆?/p>
ED
鍒?
sin
CED
飪?/p>
飥?/p>
锛?/p>
锛?/p>
D
C
A
E
B
A
锛?
3
10
10
B
锛?
10
10
C
锛?
5
10
D
锛?
5
15
锛?/p>
2012
鍥?/p>
宸?/p>
鏂囷級
2
锛?/p>
宸茬煡鍑芥暟
(
)
飥?/p>
飥?/p>
x
f
x
e
x
.
瀵逛簬鏇茬嚎
y=f
锛?/p>
x
锛変笂妯潗鏍囨垚绛夊樊鏁板垪鐨勪笁涓偣
A,B,C
锛岀粰鍑?/p>
浠ヤ笅鍒ゆ柇锛?/p>
鈶?/p>
鈻?/p>
ABC
涓�瀹氭槸閽濊涓夎褰?/p>
鈶♀柍
ABC
鍙兘鏄洿瑙掍笁瑙掑舰鈶⑩柍
ABC
鍙兘鏄瓑鑵颁笁瑙掑舰
鈶ｂ柍
ABC
涓嶅彲鑳芥槸绛夎叞涓夎褰?/p>
鍏朵腑锛屾纭殑鍒ゆ柇鏄紙
锛?/p>
A.
鈶犫憿
B.
鈶犫懀
C.
鈶♀憿
D.
鈶♀懀锛?/p>
2011
绂忓缓鐞?/p>
10
锛?/p>
3
锛?/p>
鍦?/p>
ABC
飦?/p>
涓紝鍐呰
A
锛?/p>
B
锛?/p>
C
鎵�瀵圭殑杈瑰垎鍒槸
c
b
a
,
,
锛屽凡鐭?/p>
8b=5c
锛?/p>
C=2B
锛屽垯
cosC=
锛?/p>
A
锛?
25
7
锛?/p>
B
锛?/p>
25
7
飥?/p>