娣卞湷甯?/p>
2019
骞撮珮涓夊勾绾х涓�娆¤皟鐮旇�冭瘯
鐞嗙缁煎悎鑳藉姏娴嬭瘯鐗╃悊璇曢
2019.2.22
浜屻�侀�夋嫨棰橈細鏈鍏?/p>
8
灏忛锛屾瘡灏忛
6
鍒嗭紝鍏?/p>
48
鍒嗐�傚湪姣忓皬棰樼粰鍑虹殑鍥涗釜閫夐」涓紝绗?/p>
14-18
棰樺彧鏈変竴椤圭鍚堥鐩姹傜
19-21
棰樻湁澶氶」绗﹀悎棰樼洰瑕佹眰銆?/p>
鍏ㄩ儴閫夊鐨勫緱
6
鍒嗭紝
閫夊浣嗕笉鍏?/p>
鐨勫緱
3
鍒嗭紝鏈夐�夐敊鐨勫緱
0
鍒嗐�?/p>
14
锛庡湪姘村钩鍦伴潰涓婃柟鏌愬锛屾妸璐ㄩ噺鐩稿悓鐨?/p>
P
銆?/p>
0
涓ゅ皬鐞冧互鐩稿悓閫熺巼娌跨珫鐩存柟鍚戞姏鍑猴紝
P
鍚戜笂锛?/p>
O
鍚戜笅锛屼笉璁＄┖姘旈樆鍔涳紝涓ょ悆浠庢姏鍑哄埌钀藉湴鐨勮繃绋嬩腑
A
锛?/p>
P
鐞冮噸鍔涘仛鍔熻緝澶?/p>
B
锛庝袱鐞冮噸鍔涚殑骞冲潎鍔熺巼鐩哥瓑
C
锛庤惤鍦板墠鐬棿锛?/p>
P
鐞冮噸鍔涚殑鐬椂鍔熺巼杈冨ぇ
D
锛庤惤鍦板墠鐬棿锛屼袱鐞冮噸鍔涚殑鐬椂鍔熺巼鐩哥瓑
15
锛庡鍥撅紝甯︾數鐨勫钩琛屾澘鐢靛鍣ㄥ拰闈欑數璁＄敤瀵肩嚎鐩歌繛
A
锛庤嫢浠呬娇涓婃瀬鏉夸笂绉讳竴娈佃窛绂伙紝鍒欑數瀹瑰櫒鐨勭數瀹瑰澶?/p>
B
锛庤嫢浠呭悜涓ゆ澘闂存彃鍏ヤ簯姣嶄粙璐紝鍒欐澘闂寸數鍦哄己搴﹀噺灏?/p>
C
锛庤嫢闈欑數璁℃寚閽堝紶瑙掑澶э紝鍙兘浠呮槸鍥犱负涓ゆ澘姝ｅ闈㈢Н澧炲ぇ
D
锛庤嫢闈欑數璁℃寚閽堝紶瑙掑噺灏忥紝鍙兘浠呮槸鍥犱负涓ゆ澘闂磋窛鍙樺ぇ
16
锛庡鍥炬墍绀猴紝灏嗕竴灏忕悆浠庡浐瀹氭枩闈㈤《绔?/p>
A
浠ユ煇涓�閫熷害姘村钩鍚戝彸鎶涘嚭锛屾伆濂借惤鍒版枩闈㈠簳绔?/p>
B
銆傝嫢鍒濋�熷害涓嶅彉锛屽灏忕悆鏂藉姞涓嶄负闆剁殑姘村钩鏂瑰悜鐨勬亽鍔?/p>
F
锛屼娇灏忕悆钀藉埌
AB
杩炵嚎涔嬮棿鐨勬煇
鐐?/p>
C
銆備笉璁＄┖姘旈樆鍔涖�傚垯
A
锛庡皬鐞冭惤鍒?/p>
B
鐐逛笌钀藉埌
C
鐐规墍鐢ㄦ椂闂寸浉绛?/p>
B
锛庡皬鐞冭惤鍒?/p>
B
鐐逛笌钀藉埌
C
鐐圭殑閫熷害鏂瑰悜涓�瀹氱浉鍚?/p>
C
锛庡皬鐞冭惤鍒?/p>
C
鐐规椂鐨勯�熷害鏂瑰悜涓嶅彲鑳界珫鐩村悜涓?/p>
D
锛庡姏
F
瓒婂ぇ锛屽皬鐞冭惤鍒版枩闈㈢殑鏃堕棿瓒婄煭
17
锛庡彲瑙嗕负璐ㄧ偣鐨勭敳銆佷箼涓ゅ皬杞﹀垎鍒部鍚屼竴骞崇洿璺潰鍚屽悜琛岄┒锛?/p>
t=0
鏃讹紝鐢插湪涔欏墠鏂?/p>
16m
澶勶紝瀹冧滑鐨?/p>
v-t
鍥捐薄濡傚浘鎵�绀猴紝鍒欎笅鍒楄娉曟纭殑鏄?/p>
A
锛庣敳銆佷箼鍦?/p>
t=2 s
鍜?/p>
t= 10 s
鏃跺埢骞舵帓琛岄┒