單項(xiàng)選擇題風(fēng)向標(biāo)調(diào)試時(shí)將風(fēng)向標(biāo)的標(biāo)頭對(duì)準(zhǔn)機(jī)頭時(shí)對(duì)風(fēng)角度應(yīng)該是（）.

A.180°
B.0°
C.90°
D.270°


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3.單項(xiàng)選擇題機(jī)組編號(hào)為1#下面哪個(gè)是它的Subnet Mask （）.

A.192.168.151.1
B.192.168.150.1
C.255.255.252.0
D.192.168.151.1.1

4.單項(xiàng)選擇題如下關(guān)于右偏航限位觸發(fā)設(shè)定正確的是（）.

A.調(diào)節(jié)凸輪初始0°位置后使尼龍齒輪面正對(duì)人正視面，逆時(shí)針旋轉(zhuǎn)36圈，然后調(diào)節(jié)1#螺釘，使對(duì)應(yīng)的右偏凸輪頂點(diǎn)旋到觸點(diǎn)開(kāi)關(guān)并聽(tīng)到觸點(diǎn)動(dòng)作聲音時(shí)停止
B.調(diào)節(jié)凸輪初始0°位置后使尼龍齒輪面正對(duì)人正視面，順時(shí)針旋轉(zhuǎn)36圈，然后調(diào)節(jié)1#螺釘，使對(duì)應(yīng)的右偏凸輪頂點(diǎn)旋到觸點(diǎn)開(kāi)關(guān)并聽(tīng)到觸點(diǎn)動(dòng)作聲音時(shí)停止
C.調(diào)節(jié)凸輪初始0°位置后使尼龍齒輪面正對(duì)人正視面，逆時(shí)針旋轉(zhuǎn)36圈，然后調(diào)節(jié)2#螺釘，使對(duì)應(yīng)的右偏凸輪頂點(diǎn)旋到觸點(diǎn)開(kāi)關(guān)并聽(tīng)到觸點(diǎn)動(dòng)作聲音時(shí)停止
D.調(diào)節(jié)凸輪初始0°位置后使尼龍齒輪面正對(duì)人正視面，順時(shí)針旋轉(zhuǎn)36圈，然后調(diào)節(jié)2#螺釘，使對(duì)應(yīng)的右偏凸輪頂點(diǎn)旋到觸點(diǎn)開(kāi)關(guān)并聽(tīng)到觸點(diǎn)動(dòng)作聲音時(shí)停止

5.單項(xiàng)選擇題CE系統(tǒng)中修改系統(tǒng)時(shí)間時(shí)，選擇的時(shí)區(qū)應(yīng)該是（）.

A.（GMT-12：00） International Date Line West
B.（GMT-07：00） Chihuahua，La Paz， Mazatlan
C.（GMT-03：00）Buenos Aires，Georgetown
D.（GMT+08：00）Beijing，Chongqing，Hong Kong SAR，Urumqi