2015
骞翠笂鍗婂勾杈藉畞鐪佺數姘斿伐绋嬪笀銆婂彂杈撳彉鐢点�嬪繀鐪嬬煡锛氶珮
棰戠浉宸繚鎶よ�冭瘯璇曢
涓�銆佸崟椤归�夋嫨棰橈紙鍏?/p>
25
棰橈紝姣忛
2
鍒嗭紝姣忛鐨勫閫夐」涓紝鍙湁
1
涓簨鏈�绗﹀悎
棰樻剰锛?/p>
1
銆佸湪
PLC
鎺у埗鐢垫绯荤粺涓紝
VVVF
鎺у埗绯荤粺涓庣洿娴佹嫋鍔ㄧ數姊浉姣旓紝鍓嶈�呭彲鑺傝兘
涓?/p>
__
銆?/p>
A
锛?/p>
20%
锝?/p>
30%
B
锛?/p>
30%
锝?/p>
40%
C
锛?/p>
50%
锝?/p>
60%
D
锛?/p>
65%
锝?/p>
70%
2
銆佽繍绠楁斁澶у櫒搴旂敤鐢佃矾濡傚浘鎵�绀猴紝鍦ㄨ繍绠楁斁澶у櫒绾挎�у伐浣滃尯锛岃緭鍑虹數鍘嬩笌杈撳叆
鐢靛帇涔嬮棿鐨勮繍绠楀叧绯绘槸锛?/p>
().
A.uo=10(u1-u2)
B.uo=10(u2-u1)
C.uo=-10u1-11u2
D.uo=10u1-11u2
3
銆佹牴鎹槻鐏殑瑕佹眰锛屽綋灞嬪娌规蹈鍙樺帇鍣ㄤ箣闂撮渶璁剧疆闃茬伀澧欐椂锛岄槻鐏鐨勯珮搴︿笉
瀹滀綆浜庡彉鍘嬪櫒娌规灂鐨勯《绔珮搴︼紝
闃茬伀澧欑殑涓ょ搴斿垎鍒ぇ浜庡彉鍘嬪櫒鍌ㄦ补姹犵殑涓や晶鍚?/p>
__m
銆?/p>
A
锛?/p>
0.2
B
锛?/p>
0.3
C
锛?/p>
0.4
D
锛?/p>
0.5
4
銆佸湪姊佺獊鍑洪《妫氱殑楂樺害
__
鐨勯《妫氫笂璁剧疆鎰熺儫銆佹劅娓╂帰娴嬪櫒鏃讹紝鍙笉鑰冭檻瀵规帰娴?/p>
鍣ㄤ繚鎶ら潰绉殑褰卞搷銆?/p>
A
锛庡皬浜?/p>
100mm
B
锛庡皬浜?/p>
200mm
C
锛庡ぇ浜?/p>
300mm
D
锛庡皬浜?/p>
350mm
5
銆佽嫢锛屽垯绛変簬锛?/p>
().(
寮忎腑
c
涓轰换鎰忓父鏁?/p>
)
A
锛?/p>
-cos3x+c
B
锛?/p>
sin3x+c
C
锛?/p>
cos3x+c
D
锛?/p>
6
銆佸湪鍙岀紳骞叉秹瀹為獙涓紝褰撳叆灏勫崟鑹插厜鐨勬尝闀垮噺灏忔椂锛屽睆骞曚笂骞叉秹鏉＄汗鐨勫彉鍖栨儏
鍐垫槸锛?/p>
锛堬級
.
A.
鏉＄汗鍙樺瘑骞惰繙绂诲睆骞曚腑蹇?/p>
B.
鏉＄汗鍙樺瘑骞堕潬杩戝睆骞曚腑蹇?/p>
C.
鏉＄汗鍙樺骞惰繙绂诲睆骞曚腑蹇?/p>
D.
鏉＄汗鍙樺骞堕潬杩戝睆骞曚腑蹇?/p>