To our delight, this new smoke alarm system can effectively ____ very weak signals.
A: diagnose
B: detect
C: eliminate
D: trace
A: diagnose
B: detect
C: eliminate
D: trace
B
举一反三
- To our delight, this new smoke alarm system can effectively ______ very weak signals.
- To our delight， this new smoke alarm system can effectively ______ very weak signals.（ ） A: attract B: relate C: detect D: evolve
- To my delight, this new smoke alarm system can effectively ____very weak signals. A: find B: catch C: detect D: match
- Which of the following is not an advantage of radioimmunoassay？ A: It can detect trace antigen and hapten. B: It can detect trace antibody. C: High sensitivity. D: High specificity.
- Smoke alarm is very important.
内容
- 0
A voltage comparator can convert analog signals into digital signals. A: Correct B: Wrong
- 1
When nurses go into the hospital ward, ______. A: they answer a call with locator badges B: the wireless system begins to function C: staff can watch them through a wall unit D: infrared signals can detect their presence
- 2
The new economic system _____ our society, so now we become very powerful in the world.
- 3
A sensor is a kind of device which can convert electrical signals into excitation signals. A: Correct B: Wrong
- 4
Mr Smith,______,is very kind to us. A: is our new teacher B: our new teacher C: he is our new teacher D: be our new teacher