Although the number of different biological signals is probably in the thousands, and the kinds of response elicited by these signals are comparably numerous, the machinery for transducing all of these signals is built from about ____ basic types of protein components.
A: 6
B: 10
C: 15
D: 20
A: 6
B: 10
C: 15
D: 20
举一反三
- what is a digital signal? () A: discrete signals B: continuous signals C: both of a and b D: signals exist in the world
- Interpersonal communication is about reading the signals we send each other and recognizing what signals we are sending out。（ ）
- which address signals are used to generate the chip select signal of the memory chip for the one-to-one mapping of the memory chip to the logical storage space of the computer system? A: some of the high-order address signals of the address bus B: the lower-order address signals of the address bus C: all remaining high-order address signals of the address bus D: One of the remaining high-order address signals of the address bus
- All messages, whether written or spoken, contain ______. A: non verbal symbols B: verbal symbols C: non verbal signals D: verbal signals
- Interpersonal communication is about reading the signals we send each other and recognizing what signals we are sending out.（ ） A: 对 B: 错