糖酵解途径的关键酶是( )
A．6-磷酸葡萄糖酶
B．果糖双磷酸酶
C．磷酸果糖激酶-1
D．1,6二磷酸果糖激酶
E．3-磷酸甘油醛脱氢酶
参考答案：C
Password is a secret series of (69) that enables a user to access a file, computer, or program. On multi-user systems, each user must enter his or her password before the computer will respond to (70) . The password helps ensure that (71) users do not access the computer. In addition, data files and programs may require a password.
A．order
B．commands
C．instruction
D．tracks
简述表面粘贴法的适用范围和施工工序。
