【单选题】Calmodulin is a member of a family of Ca 2+ -binding proteins that also includes troponin, which triggers skeletal muscle contraction in response to increased [Ca 2+ ]. Members of this family share a ...
【单选题】The derrick to be laid down on deck,cargo blocks,span tackles,guide rollers and all moving parts of derrick to be dismantled,cleaned and greased with special grease.This sentence is most possibly foun...