A.5'-UGUACGAUACCUUAC-3'
B.5'-CAUUCCAUAGCAUGU-3'
C.5'-GUAAGGUAUCGUACA-3'
D.5'-ACAUGCUAUGGAAUG-3'
A、resultant moment; moment; linear normal stress
B、resultant normal force; force; linear normal stress
C、resultant moment; moment; nonlinear normal stress
D、resultant moment; moment; nonlinear shear stress
A.resultant; linear; longitudinal axis
B.resultant; nonlinear; longitudinal axis
C.external; linear; radial line
D.resultant; nonlinear; radial line
The figure shows the curves of two simple harmonic motions. If the two simple harmonic motions can be superimposed the initial phase of the resultant cosine oscillation is ().
A、0
B、
C、
D、
A.
B.
C.
D.
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