The code compiles and “s=” is printed.
The code compiles and “s=null” is printed.
The code does not compile because string s is not initialized.
The code does not compile because string s cannot be referenced.
The code compiles， but a NullPointerException is thrown when toString is called.
第1题：
People tend to talk about presents in a fairly loving way. A woman whose mother had died years ago described the many gifts around her house.These were gifts that her mother had given her over the years:“I appreciate these, and they mean something to me,”the woman said,“because I remember the occasions they were given on, and that they were from my mother, and the relationship we’ve had.”The gifts remain and keep the relationship alive in mind. This woman felt the same way about the gifts she gave to others. She hoped that the recipients would look at here gifts in years to come and
第2题：
White box testing of software testing is a test for software structurE.Which of the following item should not be included in the content of white box?
A．boundary value analysis
B．statement testing
C．branch testing
D．path testing
第3题：
A.Testing 1245
B.Testing345
C.Testing 1 245
D.245
第4题：
A、Leading finding leading
B、to lead found to lead
C、Led finding led
D、Leading found led
第5题：
As research techniques become more______(advance)，the number of animals used in experiments may decrease，but stopping testing on animals altogether is a long way away.
第6题：
An appropriate title for the text is most likely to be__________.
[A]Fors and Againsts of DNA testing
[B] DNA testing and It’s problems
[C]DNA testing outside the lab
[D] lies behind DNA testing
第7题：
Friendship Street and Xinhua Road has been given way to84. _________
第8题：
A.on
B.at
C.in
D.with
第9题：
An appropriate title for the text is most likely to be
A．Fors and Againsts of DNA Testing
B．DNA Testing and It’s Problems
C．DNA Testing Outside the Lab
D．Lies behind DNA Testing
第10题：
Which of following statements about testing software with data is (are) true?
Ⅰ.The primary purpose of such testing is to find errors.
Ⅱ.Such testing can demonstrate the existence of errors but can not demonstrate the absence of errors.
A．Neither
B．Ⅰ only
C．Ⅱ only
D．Ⅰ and Ⅱ