1
澶嶄範棰?/p>
涓�銆?/p>
閫夋嫨棰?/p>
1.
浜屾瀬绠″嘲鍊煎寘缁滄娉㈠櫒閫傜敤浜庡摢绉嶈皟骞呮尝鐨勮В璋冿紙
C
锛?/p>
銆?/p>
A
鍗曡竟甯﹁皟骞呮尝
B
鎶戝埗杞芥尝鍙岃竟甯﹁皟骞呮尝
C
鏅�氳皟骞呮尝
D
娈嬬暀杈瑰甫璋冨箙娉?/p>
2.
娆叉彁楂樺姛鐜囨斁澶у櫒鐨勬晥鐜囷紝搴斾娇鏀惧ぇ鍣ㄧ殑宸ヤ綔鐘舵�佷负锛?/p>
C
锛?/p>
銆?/p>
A
鐢茬被
B
涔欑被
C
涓欑被
3.
鍙樺浜屾瀬绠¤皟棰戝櫒瀹炵幇绾挎�ц皟棰戠殑鏉′欢鏄彉瀹逛簩鏋佺鐨勭粨鐢靛鍙樺寲鎸囨暟
n
涓猴紙
C
锛?/p>
銆?/p>
A 1/3 B 1/2 C 2 D 4
4.
鏌愯秴澶栧樊鎺ユ敹鏈虹殑涓涓?/p>
465kHz
锛屽綋鎺ユ敹
550kHz
鐨勪俊鍙锋椂锛岃繕鏀跺埌
1480kHz
鐨勫共鎵颁俊鍙凤紝姝ゅ共鎵颁负锛?/p>
B
锛?/p>
銆?/p>
A
骞叉壈鍝ㄥ０
B
闀滃儚骞叉壈
C
浜掕皟骞叉壈
D
浜よ皟骞叉壈
5.
鏌愬崟棰戣皟鍒剁殑鏅�氳皟骞呮尝鐨勬渶澶ф尟骞呬负
10v
锛屾渶灏忔尟骞呬负
6v
锛屽垯璋冨箙绯绘暟
m
a
涓猴紙
C
锛?/p>
A 0.6 B 0.4 C 0.25 D 0.1
6.
浠ヤ笅鍑犵娣烽鍣ㄧ數璺腑锛岃緭鍑轰俊鍙烽璋辨渶绾噣鐨勬槸锛?/p>
A
锛?/p>
A
浜屾瀬绠℃贩棰戝櫒
B
涓夋瀬绠℃贩棰戝櫒
C
妯℃嫙涔樻硶鍣ㄦ贩棰戝櫒
7.
鏌愪笝绫昏皭鎸姛鐜囨斁澶у櫒宸ヤ綔鍦ㄤ复鐣岀姸鎬侊紝鑻ヤ繚鎸佸叾瀹冨弬鏁颁笉鍙橈紝灏嗛泦鐢垫瀬鐩存祦鐢垫簮鐢靛帇澧炲ぇ锛屽垯
鏀惧ぇ鍣ㄧ殑宸ヤ綔鐘舵�佸皢鍙樹负
锛?/p>
C
锛?/p>
A
杩囧帇
B
涓寸晫
C
娆犲帇
8.
閴撮鐨勬弿杩版槸锛?/p>
B
锛?/p>
A
璋冨箙淇″彿鐨勮В璋?/p>
B
璋冮淇″彿鐨勮В璋?/p>
C
璋冪浉淇″彿鐨勮В璋?/p>
9.
涓嬪浘鎵�绀烘鍥捐兘瀹炵幇浣曠鍔熻兘锛?/p>
(
C
)
鍏朵腑
u
s
(t)= U
s
cos
蠅
s
tcos
惟
t
锛?/p>
u
L
(t)= U
L
cos
蠅
L
t
A
鎸箙璋冨埗
B
璋冨箙娉㈢殑瑙ｈ皟
C
娣烽
D
閴撮
10.
鍦ㄨ秴澶栧樊寮忚皟骞呮敹闊虫満涓紝娣烽鍣ㄧ殑杈撳嚭璋愭尟鍥炶矾搴旇皟璋愬湪浠�涔堥鐜囦笂锛?/p>
(
D
)
A
杞芥尝棰戠巼
f
c
B
鏈満鎸崱棰戠巼
f
L
C f
c
+ f
L
D f
c
- f
L
11.
鍥?/p>
1
鎵�绀虹殑妫�娉㈢數璺�備簬瀵瑰摢绉嶅凡璋冧俊鍙疯繘琛屾娉紵
(
C
)
A
鎶戝埗杞芥尝鐨勫弻杈瑰甫璋冨箙娉?/p>
B
鍗曡竟甯﹁皟骞呮尝
C
鏅�氳皟骞呮尝
D
璋冪浉娉?/p>
12.
璋冮娉㈢殑鐬椂闄勫姞鐩镐綅涓庝粈涔堟垚姝ｆ瘮锛?/p>
(
A
)
A
璋冨埗淇″彿鐨勭Н鍒?/p>
B
璋冨埗淇″彿鐨勫井鍒?/p>
C
璋冨埗淇″彿鐨勭灛鏃跺�?/p>
D
璋冨埗淇″彿鐨勯鐜?/p>
13.
鍦ㄨ皭鎸姛鐜囨斁澶у櫒涓紝涓轰簡鎻愰珮璋愭尝鎶戝埗鑳藉姏锛岃皭鎸洖璺殑
Qe
鍊硷紙
A
锛?/p>
A
瓒婂ぇ瓒婂ソ
B
瓒婂皬瓒婂ソ
C
鏃犲叧
14.
涓轰簡瀹炵幇涓欑被宸ヤ綔锛屽熀鏋佸亸缃數鍘嬪簲璁剧疆鍦ㄥ姛鐜囩鐨勶紙
B
锛?/p>
A
鏀惧ぇ鍖?/p>
B
鎴鍖?/p>
C
楗卞拰鍖?/p>
15.
鏌愯皟棰戞尝锛屽叾璋冨埗淇″彿棰戠巼
F
锛?/p>
1kHz
锛岃浇娉㈤鐜囦负
10.7MHz
锛屾渶澶ч鍋?/p>
螖
f
m
锛?/p>
10kHz
锛岃嫢璋冨埗淇″彿
鐨勬尟骞呬笉鍙橈紝棰戠巼鍔犲�嶏紝鍒欐鏃惰皟棰戞尝鐨勯甯﹀搴︿负锛?/p>
B
锛?/p>
A 12kHz B 24kHz C 20kHz D 40kHz
16.
鍙岃竟甯﹁皟鍒朵俊鍙峰拰鍗曡竟甯﹁皟鍒朵俊鍙风殑杞芥尝琚紙
C
锛?/p>
A
鍙橀
B
鎼Щ
C
鎶戝埗
17.
鍙岃竟甯﹁皟鍒朵俊鍙峰拰鍗曡竟甯﹁皟鍒朵俊鍙风殑鍖呯粶鏄惁鍙嶆槧璋冨埗淇″彿鐨勫彉鍖栬寰嬨�傦紙
B
锛?/p>
A
鍙嶆槧
B
涓嶅弽鏄?/p>
C
鍙岃竟甯﹁皟鍒朵俊鍙峰弽鏄?/p>
18.
涓烘彁楂樻尟鑽￠鐜囩殑绋冲畾搴︼紝楂橀姝ｅ鸡娉㈡尟鑽″櫒涓�鑸�夌敤锛?/p>
B
锛?/p>
A LC
姝ｅ鸡娉㈡尟鑽″櫒
B
鏅朵綋鎸崱鍣?/p>
C RC
姝ｅ鸡娉㈡尟鑽″櫒