集中荷载作用的无腹筋梁，随着剪跨比λ的______，斜截面受剪承载力有增高的趋势；剪跨比对无腹筋梁破坏形态的影

Judging by the context, the word "perennial" in the second paragraph most probably means

A．perpetual

B．recurring

C．transient

D．perilous

A．perpetual

B．recurring

C．transient

D．perilous

Judging by the context, the word "stately" in the first paragraph means ______.

A．shabby

B．makeshift

C．impressive

D．dilapidated

Judging from the context, the word “rub” (Line 1, Para.3) probably means

A．friction

B．contradiction

C．conflict

D．problem

Judging from the context, the word “rub” (Line 1, Para.3) probably means

A．friction

B．contradiction

C．conflict

D．problem

Judging by the context, the word "stately" in the first paragraph means ______.

A．shabby

B．makeshift

C．impressive

D．dilapidated

Judging from the context, the word "rub"(Para. 3)probably means

A．friction.

B．contradiction.

C．conflict.

D．problem.

Judging from the context, the word "stack"(Para. 2)most probably means______.

A．pile

B．store

C．clean

D．preserve

Judging from the context, what does the word "don"(Para. 1)mean？

A．Destroy.

B．Wear.

C．Discard.

D．Buy.

Judging from the context, the word "whizzed" most probably means "______".

A．kept turning around quickly

B．went into and out of its orbit quickly,

C．moved very fast

D．exploded all the while