皮皮学，免费搜题
登录
搜题
【单选题】
如图3-2所示，一绞盘有三个等长的柄，长为L，相互夹角为120°，每个柄作用于柄的力P将该向BC连线的中点D简化，其结果为（ ）【图片】A.
R=P,MD=3PL
B.
R=0，MD=3PL
C.
R=20，MD=3PL
D.
R=0，MD=2PL
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】今需要一只50 V,10 μF 的电容器,但手头只有两只 50 V,5 μF 和两只 30 V,20 μF 的电容器,试问应该怎样解决?
【单选题】Human chefs may be ________ by robot chefs someday.
A.
replaces
B.
replace
C.
replaced
D.
replacing
【单选题】Why did the leaders take pictures with the chefs?
A.
Because they enjoyed food and wanted to show their satisfaction.
B.
Because young as the chefs were, they cooked good food.
C.
Because they wanted to tell the chefs they were friendly.
D.
Because the young chefs asked them to do so.
【简答题】阅读理解。 Gordon Ramsay is one of Britain's best-known chefs. He is one of the only three chefs in the country to maintain three Michelin stars for their restaurant. Gordon was born in Scotland but was br...
【单选题】应用程序窗体的名称属性为Frm1，窗体上有一个命令按钮，其名称属性为Cmd1，单击窗体和命令按钮的事件过程名分别为______。
A.
form_ Click() Command1_Click()
B.
Frm1_ Click() Command1_ Click()
C.
form_ Click() Cmd1_ Click()
D.
Frm1_ Click() Cmd1_ Click()
【单选题】窗体Form1上有一个命令按钮，其名称属性为Cmd1，命令按钮的Click事件过程名为( )。
A.
Command1_Click()
B.
Form1_Click()
C.
Cmd1_Click()
D.
Frm1_Click()
【简答题】今需要一只50V、10μF的电容器，但手头只有两只50V、5μF和两只30V、20μF的电容器，试问应该怎样解决?
【单选题】— Foreign trade has been developing very fast in Guangdong. — Yes. Guangdong is China’s largest province ___ foreign trade volume.
A.
in terms of
B.
in place of
C.
in charge of
D.
in favor of
相关题目：
参考解析：
知识点：
题目纠错 0
发布
