3. ________ refers to concealing the tip by moving the tip in an opposing direction; A: Mid tip B: Revealing the tip C: Hiding the tip D: Tip side

______ is to be in the flowing "river" of bears. A: Stand on the tip of the cape B: To stand on the tip of the cape C: Standing on the tip of the cape D: Being standing on the tip of the cape

Which forces belong to external forces(). A: spring force B: damper force C: actuator force D: gravity force

The essence of internal force is the force between atoms.

[音频]Norcal Approach:Air Force 1, ____________Air Force 1:________Air Force 1Norcal Approach:...cleared ILS-X runway 16R approachAir Force 1: ________, cleared for ILS-X 16R Air Force 1

In some restaurants it is expected that the customer will leave a ‘tip’. Typically, what percentage tip should the customer leave?

After simplification of any force system in space, a force and a couple are obtained. The magnitude of this force is ( ) the principal vector of the force system. A: equal to B: more than C: less than D: not equal to

Which tip is not mentioned in this video?

10.What does the ring gesture (you form an "O" by holding the tip of your forefinger to the tip of your thumb) mean in Britain?

‏In America, people usually need to give a tip to the service people when the service is done. The tip is usually 15 to 25% of the total fare.‌