【多选题】Which of the following statements about magnetic seizure therapy (MST) are correct?
A.
Unlike rTMS, MST aims to induce a seizure like ECT. So the pulses are given at a higher frequency than that used in rTMS.
B.
The goal of MST is to retain the effectiveness of ECT while reducing its cognitive side effects.
C.
Like rTMS, MST uses magnetic pulses instead of electricity to stimulate a precise target in the brain.
D.
MST borrows certain aspects from both ECT & rTMS.
【单选题】Q:what are the two people talking about?
A.
The repair of the main engine.
B.
The frequency of changing the powder.
C.
The side to get alongside.
D.
The leaving time of the ship.
【单选题】Q:What are the two people talking about?
A.
The repair of the main engine.
B.
The frequency of changing the powder.
C.
The side to get alongside.
D.
The leaving time of the ship.
【单选题】Which one of the following statements concerning COSPAS-SARSAT is true?
A.
EPIRBs are units that are used as alerting devices.
B.
There are satellites in a low-earth polar orbit that detect EPRIB beacons on 406 MHz and relay the information to an earth-side Local User Terminal (LUT).
C.
the Doppler frequency measurement concept is used to determine the EPIRB’s location.
【单选题】Beth is a 68 years old woman, who suffered chronic obstructive pulmonary disease for 10 years. Due to cough, cough phlegm aggravated, accompanied by fever, wheezing for 3 days, she was admitted to hos...
C.
Respiratory frequency decreased
D.
Bronchial shift to one side
【单选题】Which of the following statements describes the carrier?
A.
The carrier consists of at Ieast 3 separate but closely spaced'frequencies.
B.
The carrier is a radio frequency( RF) signal that, is modified to carry intelligence.
C.
rfhe carrier is used to modulate the information signal.
D.
There are always sidebands on either side of the carrier.