单选题On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation?（）AFeed-water heater internal tube surfacesBInternal distillate cooler tubesCFlash chamber vertical surfacesDDistilling condenser tubes
单选题
On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation?（）
A
Feed-water heater internal tube surfaces
B
Internal distillate cooler tubes
C
Flash chamber vertical surfaces
D
Distilling condenser tubes
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