【单选题】When a skeletal muscle shortens during contraction, which of these statements is false?
D.
The sarcomeres shorten
【单选题】认为自我失调是人类适应不良的根源的学派是
【单选题】对于建设工程项目,尤其是( )的质量预控,就是通过施工质量计划或施工组织设计或施下项目管理实施规划的制定过程,运用目标管理的手段,实施工程质量事前预控,或称为质量的计划预控。
【单选题】某班星期一上午要排语文、数学、体育、外语4门课,要求体育课不在第一节也不在第四节,排课方式共有()种
【单选题】Which of the following changes takes place when a skeletal muscle contracts?
A.
Z discs move farther apart.
B.
A ctin filaments contract.
C.
M yosin filaments contract.
D.
Sarcomeres become shorter.
【单选题】When comparing the contractile responses in smooth and skeletal muscle, which of the following is most different?
A.
The source of activator calcium
B.
The role of calcium in initiating contraction
C.
The mechanism of force generation
D.
The source of energy used during contraction
E.
The nature of the contractile proteins
【单选题】认为自我失调是人类适应不良的根源的学派是