The bioavailability of L-dopa is very low, this is due to A: difficulty to pass through the brain barrier B: rapid acetylation in liver C: peripheral hydroxylation D: a low absorption rate E: rapid peripheral decarboxylation

Would you please _____ to Tom?: pass|pass it on|pass on|pass on it

To design a digital low-pass filter using the bilinear transformation method and analog low-pass filter, assuming that the cut-off frequency of the analog low-pass filter is [img=134x25]1803a1d911e6cbe.png[/img] and the bilinear transformation parameter [img=82x19]1803a1d91a05bd3.png[/img] is selected, the cut-off frequency [img=17x17]1803a1d922ed622.png[/img] of the resulting digital filter is ( ). A: [img=109x25]1803a1d92a87228.png[/img] B: [img=85x25]1803a1d9330f7ad.png[/img] C: [img=74x25]1803a1d93bdee3e.png[/img] D: [img=98x25]1803a1d9443158c.png[/img]

The bilinear transformation that directly maps the analog low-pass filter to a digital high-pass filter is [img=102x47]17de859f621abed.png[/img].

He speaks French well enough to _____ a French man. A: pass for B: pass on C: pass out D: pass to

I think this kind of cloth can ______ silk. A: pass over B: pass out C: pass by D: pass for

下面哪个短语里的pass是“去世”的意思？ A: pass away B: pass by C: pass on

On entering another country, a tourist will have to ______ the Customs. A: pass through B: pass by C: pass over D: D. pass for

Unless you work hard you ______ your test. A: will pass B: will not pass C: would pass D: would not pass

I wish I______yesterday' exam. A: can pass B: pass C: were able to pass D: had been able to pass