Which of the following is not the criteria for ideal adhesive?
A: Maintain its strength forever under all types of conditions
B: Need no surface preparation
C: Stick to any material
D: Fast cure in application
A: Maintain its strength forever under all types of conditions
B: Need no surface preparation
C: Stick to any material
D: Fast cure in application
举一反三
- Which of the following statements is true according to the passage? A．Qigong can cure some diseases． B．Qigong can not cure any disease． C．Qigong can cure all kinds of incurable diseases． D．Qigong can cure some patients from danger．
- Which of the following describes a material with high compressive strength but lowtensile strength A: tough B: B. brittle C: C. ductile D: D. malleable E: E. resilient
- Which of the following is recyclable material? （ ） A: Aluminum B: All the options C: Glass D: Cardboard
- Which of the following statements is correct ? (1) The strength of the parts indicates the ability of that to resist damage. (2) The stiffness of the parts indicates the ability of that to resist deformation. (3) The stability of the parts indicates the ability of that to maintain its original equilibrium form. (4) The higher the strength, stiffness and stability of the parts are, the better.
- A steady flow is one in which all conditions at any point in a stream remain constant with respect to time, but the conditions may be different at different points.()