2 steps at a time. How many ways are there for David to go up the stairs? 一道有10级的楼梯,大卫每一步可以上1级或2级,问大卫走上这道楼梯共有多少种方法?相关知识点: 试题来源: 解析 89. 1st 2nd 3th 4th 5th 6th 7th 8th 9th 10th 1 2 3 5 8 13 21 34 55 89...
"The jet was the first to achieve supersonic flight."(supersonic)"There is a narrow flight of stairs in their house."(narrow, short, long, steep, wide) Used with verbs: "He caught an early flight home."(caught, had, took)"They just made their flight."(made, missed, caught)"She ...
Deepening involves creating more relaxation and focus by using descending imagery, such as imagining yourself walking down a long flight of stairs or counting backward. The deepening phase focuses on helping open your consciousness to suggestion, which is the next phase. Suggestion Once you've reac...
If you already have a tendency to lean forward when walking up a flight of stairs, you're likely going to have the same poor posture and form on the stair-climber, and hunching over the handrails isn't doing your body any favors. It limits the amount of bodyweight you have to use/l...
Packing is Easier.Although heaving my 18kg checked luggage up a flight of stairs isn’t exactly pleasurable, at least I don’t have to worry about playing tetris while packing a maxed out carry-on bag. I can use all theorganizational packing toolsI wish without worrying about the extra bit...
Our clavichord is kept in the living-room. It has belonged to our family for a long time. The instrument was bought by my grandfather many years ago. Recently it was damaged by a visitor. She tried to play jazz on it! She struck the keys too hard and two of the strings were broken...
It was a field trip to a ghost town. Off a country road, the procession turned slowly up the long driveway of the imposing property. Theconvoy held the juryin the double murder trial ofAlex Murdaugh. "Moselle" is the hunting lodge of the Murdaugh family — Alex, his wifeMaggie, a...
Now, I have become more diligent in my study, and I have a feeling of "by going up one flight of stairs" in my study, trying to answer questions as quickly and accurately as a computer. Now, I have become more sensible. I wont keep holding my mothers hand and saying, "I want thi...
she grew, as they helped to___the family all winter long. However, I couldn’t understand why she put so much___into looking after those potted plants. They didn’t___us any food and they rarely had any flowers. It___a mystery (奥秘) to me for a long time. Now as a(n)___...
As for stairs offering clues to a person’s heart health, doctors already ask patients whether they can go up a flight of stairs without symptoms before clearing them for major surgery, Freeman noted. Other tests found to predict longevity include being able toget back up without supportafter ...