单选题Very long, complex expressions in program are difficult to write correctly and difficult to（）.A defendB detectC defaultD debug
题目
单选题
Very long, complex expressions in program are difficult to write correctly and difficult to（）.
A
defend
B
detect
C
default
D
debug
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参考答案和解析
正确答案：
D
解析：
代码需要非常长并且结构复杂的程序很难书写正确，并且也难以调试。