皮皮学，免费搜题
登录
搜题
【单选题】
函数f(x)在 处有定义是函数在该点处有极限的A.
充分条件
B.
必要条件
C.
充要条件
D.
无关条件
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】In early 2004 eight tiny sensors were dropped from a plane near a military base in California. After hit ting the ground, the sensors—also known as smart dust sensors organized themselves into a netwo...
A.
giving troops their protective gear
B.
organizing themselves into a computer network
C.
detecting the movement of military vehicles nearby
D.
operating in remote and dangerous War zones
【单选题】__________sensors are able to detect targets autonomously
A.
Position and movement
B.
Non-cooperative
C.
Exteroceptive sensors
D.
ex-proprioceptive ones (sensors)
【简答题】阅读理解。 Head above Water TUVALU, a tiny country in the Pacific Ocean, has asked for help as it will be swallowed up by the sea. Storms and huge waves are a constant threat and none of Tuvalu's nine litt...
相关题目：