(A) Which undergoes rapid expansion
(B) In which accelerators or retarders have been added according to need
(C) In which amount of water of hydration is controlled
(D) In which the crystals are all of uniform size
(A) Which undergoes rapid expansion
(B) In which accelerators or retarders have been added according to need
(C) In which amount of water of hydration is controlled
(D) In which the crystals are all of uniform size
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