Optogenetics is a technique used to ______. A: search for new types of neurons B: turn the cells on and off with light C: develop new tools for cell research D: insert light-sensitive proteins into algae

There are several descriptions about the relationship between Fill Light and light ratio, which one is correct? A: As Fill Light is brighter, the light ratio is smaller. B: As Fill Light is brighter, the light ratio is larger. C: There is no relationship between Fill Light and light ratio D: As Fill Light is darker, the light ratio is larger.

智慧职教: It is not the tools a scientist uses but how he uses the tools that _____.

This computer ______ as an iPad. A: almost as light was B: was almost as light C: was as light almost D: D. light as almost was

Light meter has many types. Which one is Independent light meter? A: reflected light meter B: pointer light meter C: Digital LCD Light Meter D: incident light meter

The purchase of tools on account is recorded by a A: debit to Accounts Payable and a credit to Tools. B: credit to Tools and a credit to Accounts Payable. C: debit to Tools and a credit to Accounts Payable. D: debit to Tools and a debit to Accounts Payable.

In Para. 4, “organizational tools” are _______. A: tools that people use to calculate(计算) numbers B: tools that help people plan and/or arrange so that something is successful or effective C: tools used to manage a group of people who are doing something D: tools used in schools to help students share their personal interests

What does the woman think the light does? A: The light bounces off things. B: The light moves very fast. C: The light shines on things and light them up. D: The light moves from one thing to another.

Unity提供了那几种光源（ ） A: Area Light B: Point Light C: Spot Light D: Dierctional Light

In the title of the text “The Light of Depression”, “light” may NOT be interpreted as ____ A: the lights of the city B: the light of a new experience C: the light that painted color into her life D: the light that illuminated her life