题目内容
（请给出正确答案）
A、Establishing eye contact with the whole audience
B、Staring at one audience all the time.
C、Scanning your audience of a large group.
D、Avoiding reading script from your cellphone.
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有如下程序： #include＜iostream.h＞ using namespace std； class Demo { public： Demo(){ cont＜＜"default constructor\n"；} Demo(const Demo &x){ cont＜＜"copy constructor\n"；} }； Demo userCode(Demo b){Demo c(b)；return c；} int main() { Demo a，d； cout＜＜"calling userCode()\n"； d=userCode(a)； return 0； } 执行上面程序的过程中，构造函数Demo()和Demo(const Demo &x)被调用的次数分别是
A．1和1
B．1和2
C．2和3
D．2和4
有如下程序： #include＜iostream.h＞ Using namespace std； Class Demo { public： Demo(){ cout＜＜“default constructor\n”；} Demo(const Demo &x){ cont＜＜“copy constructor\n”；} }； Demo usercode(Demob){Demo c(b)；return c;} int main() {
A．1和1
B．1和2
C．2和3
D．2和4
Baidu Eye. It is said to be a different product from Google Glass in terms of functionality.
The company demonstrated a working prototype on September 3 at its annual Technology Innovation Conference in Beijing. It bears a similarity to Google Glass, but it has no screen. Instead, the device uses a camera to scan objects, and focuses on analyzing information around its user and beaming that to a smartphone.
Baidu says the device is designed to support image search. The company's CEO Robin Li believes in five years' time, people will get used to searching by image and audio rather than text. Li has given an example of how one can take advantage of Baidu Eye, "If you are in a shopping mall and come across a woman whose skirt looks really attractive, you take a photo of her skirt using Baidu Eye, and you'll get to know where to buy one for yourself.
According to Kaiser Kuo, Baidu's director of international communications, Baidu Eye can also recognize voice and gesture, "You can use voice commands, or gesture commands - like expanding to zoom, or circling an object in your field of view with your finger.
Baidu is yet to announce a release date or marketing plans for Baidu Eye.
1.Baidu is China's leading search engine company.{T; F}
2.Baidulaunched a product that has more functions than Google Glasson September 3.{T; F}
3.Baidu Eyecanscan objects with its small screen.{T; F}
4.The company’s CEO Robin Li believes thatpeople will get used to searching by text.{T; F}
5. Baidu has already announced the release of Baidu Eye.{T; F}
What causes eye problem when using a computer？
A．Blinking eyes less．
B．Using fewer eye-drops．
C．Moving eyeballs fast．
D．Concentrating on work．
A、Booking Hotels at the Right Time
B、Joining loyalty programs
C、Using Shopping Sites
D、Keeping an eye out for deals and coupons
A、Making eye contact with the audience.
B、Walking a lot on the platform.
C、Asking the audience questions.
D、Using gestures and postures.
有如下程序： #include＜iostream.h＞ using namespace std; class TestClass { public: TestClass (){cout＜＜"default constructor\n";} TestClass(const TestClass &x){cont＜＜"copy constructor\n";} TestClass userCode(TestClass b){TestClass c(b);return c;} int main() { TestClass a,d; cout＜＜"calling userCode()\n"; d=userCode(a); return 0; } 执行上面程序的过程中，构造函数TestClass()和TestClass(const Testclass＆x)被调用的次数分别是()
A． 2次 3次
B．3次 2次
C．都是2次
D．都是3次
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