果树嫁接方法主要分为（）、（）、（）和（）四种。
参考答案：芽接法、枝接法、根接法、茎尖嫁接
As is shown in the movie, under no circumstances ________ faith and confidence.
A．you should lose
B．shouldn't you have
C．should you lose
D．you shouldn't have
对劳务作业承包人未经劳务作业发包人认可，超出设计图纸范围和因劳务作业承包人原因造成的返工的工程量，（）不予计量。
