绗?/p>
6
棰?/p>
涔濆勾绾ф暟瀛︾浜岄樁娈垫娴嬶紙鍦嗭級
鍒嗗�硷細
150
鍒?/p>
鏃堕棿锛?/p>
120
鍒嗛挓
涓�銆侀�夋嫨棰?/p>
锛堜笅鍒楀悇棰樼粰鍑虹殑鍥涗釜閫夐」涓紝鍙湁涓�涓槸姝ｇ‘鐨勶紟姣忓皬棰?/p>
3
鍒嗭紝婊″垎
36
鍒嗭級
1
锛?/p>
鐢ㄧ洿瑙掗挗灏烘鏌ユ煇涓�宸ヤ欢鏄惁鎭板ソ鏄崐鍦嗙幆褰紝
鏍规嵁鍥炬墍琛ㄧず鐨勬儏褰紝
鍥涗釜宸ヤ欢涓偗瀹氭槸鍗婂渾鐜舰鐨勬槸
锛?/p>
B
锛?/p>
2
锛庡凡鐭ヤ袱鍦嗙殑鍗婂緞鍒嗗埆涓?/p>
6
鍜?/p>
8
锛屽渾蹇?
璺濅负
7
锛屽垯涓ゅ渾鐨勪綅缃叧绯绘槸
( C )
A
锛庡绂?/p>
B
锛庡鍒?/p>
C
锛庣浉浜?/p>
D
锛庡唴鍒?/p>
3
锛庡鍥撅紝灏嗗崐寰勪负
2cm
鐨勫渾褰㈢焊鐗囨姌鍙犲悗锛屽渾寮ф伆濂界粡杩囧渾蹇?/p>
O
锛屽垯鎶樼棔
AB
鐨勯暱涓猴紙
C
锛?/p>
A
锛?/p>
2
cm
B
锛?/p>
3
cm
C
锛?/p>
2
3cm
D
锛?/p>
2
5
cm
4
锛?/p>
濡傚浘锛?/p>
閲忚鍣ㄥ缂樿竟涓婃湁
A
銆?/p>
P
銆?/p>
Q
涓夌偣锛?/p>
瀹冧滑鎵�琛ㄧず鐨勮鏁板垎鍒槸
180
掳銆?/p>
70
掳銆?/p>
30
掳锛?/p>
鍒欌垹
PAQ
鐨勫ぇ灏忎负
锛?/p>
B
锛?/p>
A
锛?/p>
10
掳
B
锛?/p>
20
掳
C
锛?/p>
30
掳
D
锛?/p>
40
掳
5
锛庡湪鐩磋鍧愭爣绯讳腑锛屸姍
A
銆佲姍
B
鐨勪綅缃鍥炬墍绀?/p>
.
涓嬪垪鍥涗釜鐐逛腑锛屽湪鈯?/p>
A
澶栭儴涓斿湪鈯?/p>
B
鍐呴儴鐨勭偣鏄紙
C
锛?/p>
A
锛?/p>
锛?/p>
1
锛?/p>
2
锛?/p>
B
锛?/p>
(2,1) C
锛?/p>
(2,-1) D
锛?/p>
(3,1)
6
锛?/p>
濡傚浘锛?/p>
P
涓衡姍
O
澶栦竴鐐癸紝
PA
銆?/p>
PB
鍒嗗埆鍒団姍
O
浜?/p>
A
銆?/p>
B
锛?/p>
CD
鍒団姍
O
浜庣偣
E
锛屽垎鍒氦
PA
銆?/p>
PB
浜庣偣
C
銆?/p>
D
锛岃嫢
PA=5
锛?/p>
鍒欌柍
PCD
鐨勫懆闀夸负锛?/p>
D
锛?/p>
A
锛?/p>
5 B
锛?/p>
7 C
锛?/p>
8 D
锛?/p>
10
7.
涓嬪垪缁撹涓敊璇殑鏄?/p>
( D )
A
锛庝笁瑙掑舰鐨勫蹇冨埌涓夎褰㈠悇椤剁偣鐨勮窛绂荤浉绛?/p>
B
锛庝笁瑙掑舰鐨勫唴蹇冨埌涓夎褰笁杈圭殑璺濈鐩哥瓑
C
锛庡寘鍚竴涓渾鐨勪腑蹇冨绉板浘褰紝鍏跺绉颁腑蹇冧竴瀹氬湪鍦嗗績涓?/p>
D
锛庝笁瑙掑舰鐨勫唴蹇冩槸瀹冪殑鍐呰骞冲垎绾跨殑浜ょ偣锛屽畠鍙兘鍦ㄤ笁瑙掑舰鍐呫�佷笁瑙掑舰涓婃垨涓夎褰㈠
8
锛庡鍥撅紝
A
銆?/p>
B
銆?/p>
C
銆?/p>
D
涓衡姍
O
鐨勫洓绛夊垎鐐癸紝鍔ㄧ偣
P
浠庡渾蹇?/p>
O
鍑哄彂锛屾部
O-C-D- O
璺嚎浣滃寑閫熻繍鍔紟璁捐繍鍔ㄦ椂闂翠负
t
绉掞紝鈭?/p>
APB=y
掳锛屽垯涓嬪垪鍥捐薄涓〃绀?/p>
y
涓?/p>
t
涔嬮棿鍑芥暟鍏崇郴鏈�鎭板綋鐨勬槸
( C )
绗?/p>
8
棰樺浘
O
P
D
C
B
A
y
t
0
90
45
y
t
0
90
45
y
t
0
90
45
45
90
0
t
y
A
B
C
D
绗?/p>
5
棰?/p>
绗?/p>
4
棰?/p>
锛?/p>
锛?/p>
锛?/p>
绗?/p>
3
棰?/p>